[llvm] 534e913 - [InstCombine] auto-generate test checks; NFC
Sanjay Patel via llvm-commits
llvm-commits at lists.llvm.org
Sat Sep 19 08:07:16 PDT 2020
Author: Sanjay Patel
Date: 2020-09-19T11:06:47-04:00
New Revision: 534e9132afceed8af8b4c309dab1547cc750e9fe
URL: https://github.com/llvm/llvm-project/commit/534e9132afceed8af8b4c309dab1547cc750e9fe
DIFF: https://github.com/llvm/llvm-project/commit/534e9132afceed8af8b4c309dab1547cc750e9fe.diff
LOG: [InstCombine] auto-generate test checks; NFC
Added:
Modified:
llvm/test/Transforms/InstCombine/phi.ll
Removed:
################################################################################
diff --git a/llvm/test/Transforms/InstCombine/phi.ll b/llvm/test/Transforms/InstCombine/phi.ll
index 7c3f3102e0bc..9ac0bd2c7e3d 100644
--- a/llvm/test/Transforms/InstCombine/phi.ll
+++ b/llvm/test/Transforms/InstCombine/phi.ll
@@ -1,149 +1,198 @@
-; This test makes sure that these instructions are properly eliminated.
-;
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instcombine -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128:n8:16:32:64"
define i32 @test1(i32 %A, i1 %b) {
+; CHECK-LABEL: @test1(
+; CHECK-NEXT: BB0:
+; CHECK-NEXT: br i1 [[B:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
+; CHECK: BB1:
+; CHECK-NEXT: ret i32 [[A:%.*]]
+; CHECK: BB2:
+; CHECK-NEXT: ret i32 [[A]]
+;
BB0:
- br i1 %b, label %BB1, label %BB2
+ br i1 %b, label %BB1, label %BB2
BB1:
- ; Combine away one argument PHI nodes
- %B = phi i32 [ %A, %BB0 ]
- ret i32 %B
+ ; Combine away one argument PHI nodes
+ %B = phi i32 [ %A, %BB0 ]
+ ret i32 %B
BB2:
- ret i32 %A
-; CHECK-LABEL: @test1(
-; CHECK: BB1:
-; CHECK-NEXT: ret i32 %A
+ ret i32 %A
}
define i32 @test2(i32 %A, i1 %b) {
+; CHECK-LABEL: @test2(
+; CHECK-NEXT: BB0:
+; CHECK-NEXT: br i1 [[B:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
+; CHECK: BB1:
+; CHECK-NEXT: br label [[BB2]]
+; CHECK: BB2:
+; CHECK-NEXT: ret i32 [[A:%.*]]
+;
BB0:
- br i1 %b, label %BB1, label %BB2
+ br i1 %b, label %BB1, label %BB2
BB1:
- br label %BB2
+ br label %BB2
BB2:
- ; Combine away PHI nodes with same values
- %B = phi i32 [ %A, %BB0 ], [ %A, %BB1 ]
- ret i32 %B
-; CHECK-LABEL: @test2(
-; CHECK: BB2:
-; CHECK-NEXT: ret i32 %A
+ ; Combine away PHI nodes with same values
+ %B = phi i32 [ %A, %BB0 ], [ %A, %BB1 ]
+ ret i32 %B
}
define i32 @test3(i32 %A, i1 %b) {
+; CHECK-LABEL: @test3(
+; CHECK-NEXT: BB0:
+; CHECK-NEXT: br label [[LOOP:%.*]]
+; CHECK: Loop:
+; CHECK-NEXT: br i1 [[B:%.*]], label [[LOOP]], label [[EXIT:%.*]]
+; CHECK: Exit:
+; CHECK-NEXT: ret i32 [[A:%.*]]
+;
BB0:
- br label %Loop
+ br label %Loop
Loop:
- ; PHI has same value always.
- %B = phi i32 [ %A, %BB0 ], [ %B, %Loop ]
- br i1 %b, label %Loop, label %Exit
+ ; PHI has same value always.
+ %B = phi i32 [ %A, %BB0 ], [ %B, %Loop ]
+ br i1 %b, label %Loop, label %Exit
Exit:
- ret i32 %B
-; CHECK-LABEL: @test3(
-; CHECK: Exit:
-; CHECK-NEXT: ret i32 %A
+ ret i32 %B
}
define i32 @test4(i1 %b) {
+; CHECK-LABEL: @test4(
+; CHECK-NEXT: BB0:
+; CHECK-NEXT: ret i32 7
+; CHECK: Loop:
+; CHECK-NEXT: br i1 [[B:%.*]], label [[L2:%.*]], label [[LOOP:%.*]]
+; CHECK: L2:
+; CHECK-NEXT: br label [[LOOP]]
+;
BB0:
- ; Loop is unreachable
- ret i32 7
+ ; Loop is unreachable
+ ret i32 7
Loop: ; preds = %L2, %Loop
- ; PHI has same value always.
- %B = phi i32 [ %B, %L2 ], [ %B, %Loop ]
- br i1 %b, label %L2, label %Loop
+ ; PHI has same value always.
+ %B = phi i32 [ %B, %L2 ], [ %B, %Loop ]
+ br i1 %b, label %L2, label %Loop
L2: ; preds = %Loop
- br label %Loop
-; CHECK-LABEL: @test4(
-; CHECK: Loop:
-; CHECK-NEXT: br i1 %b
+ br label %Loop
}
define i32 @test5(i32 %A, i1 %b) {
+; CHECK-LABEL: @test5(
+; CHECK-NEXT: BB0:
+; CHECK-NEXT: br label [[LOOP:%.*]]
+; CHECK: Loop:
+; CHECK-NEXT: br i1 [[B:%.*]], label [[LOOP]], label [[EXIT:%.*]]
+; CHECK: Exit:
+; CHECK-NEXT: ret i32 [[A:%.*]]
+;
BB0:
- br label %Loop
+ br label %Loop
Loop: ; preds = %Loop, %BB0
- ; PHI has same value always.
- %B = phi i32 [ %A, %BB0 ], [ undef, %Loop ]
- br i1 %b, label %Loop, label %Exit
+ ; PHI has same value always.
+ %B = phi i32 [ %A, %BB0 ], [ undef, %Loop ]
+ br i1 %b, label %Loop, label %Exit
Exit: ; preds = %Loop
- ret i32 %B
-; CHECK-LABEL: @test5(
-; CHECK: Loop:
-; CHECK-NEXT: br i1 %b
-; CHECK: Exit:
-; CHECK-NEXT: ret i32 %A
+ ret i32 %B
}
define i32 @test6(i16 %A, i1 %b) {
+; CHECK-LABEL: @test6(
+; CHECK-NEXT: BB0:
+; CHECK-NEXT: br i1 [[B:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
+; CHECK: BB1:
+; CHECK-NEXT: br label [[BB2]]
+; CHECK: BB2:
+; CHECK-NEXT: [[B:%.*]] = zext i16 [[A:%.*]] to i32
+; CHECK-NEXT: ret i32 [[B]]
+;
BB0:
- %X = zext i16 %A to i32
- br i1 %b, label %BB1, label %BB2
+ %X = zext i16 %A to i32
+ br i1 %b, label %BB1, label %BB2
-BB1:
- %Y = zext i16 %A to i32
- br label %BB2
+BB1:
+ %Y = zext i16 %A to i32
+ br label %BB2
-BB2:
- ;; Suck casts into phi
- %B = phi i32 [ %X, %BB0 ], [ %Y, %BB1 ]
- ret i32 %B
-; CHECK-LABEL: @test6(
-; CHECK: BB2:
-; CHECK: zext i16 %A to i32
-; CHECK-NEXT: ret i32
+BB2:
+ ;; Suck casts into phi
+ %B = phi i32 [ %X, %BB0 ], [ %Y, %BB1 ]
+ ret i32 %B
}
define i32 @test7(i32 %A, i1 %b) {
+; CHECK-LABEL: @test7(
+; CHECK-NEXT: BB0:
+; CHECK-NEXT: br label [[LOOP:%.*]]
+; CHECK: Loop:
+; CHECK-NEXT: br i1 [[B:%.*]], label [[LOOP]], label [[EXIT:%.*]]
+; CHECK: Exit:
+; CHECK-NEXT: ret i32 0
+;
BB0:
- br label %Loop
+ br label %Loop
Loop: ; preds = %Loop, %BB0
- ; PHI is dead.
- %B = phi i32 [ %A, %BB0 ], [ %C, %Loop ]
- %C = add i32 %B, 123
- br i1 %b, label %Loop, label %Exit
+ ; PHI is dead.
+ %B = phi i32 [ %A, %BB0 ], [ %C, %Loop ]
+ %C = add i32 %B, 123
+ br i1 %b, label %Loop, label %Exit
Exit: ; preds = %Loop
- ret i32 0
-; CHECK-LABEL: @test7(
-; CHECK: Loop:
-; CHECK-NEXT: br i1 %b
+ ret i32 0
}
define i32* @test8({ i32, i32 } *%A, i1 %b) {
+; CHECK-LABEL: @test8(
+; CHECK-NEXT: BB0:
+; CHECK-NEXT: br i1 [[B:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
+; CHECK: BB1:
+; CHECK-NEXT: br label [[BB2]]
+; CHECK: BB2:
+; CHECK-NEXT: [[B:%.*]] = getelementptr { i32, i32 }, { i32, i32 }* [[A:%.*]], i64 0, i32 1
+; CHECK-NEXT: ret i32* [[B]]
+;
BB0:
- %X = getelementptr inbounds { i32, i32 }, { i32, i32 } *%A, i32 0, i32 1
- br i1 %b, label %BB1, label %BB2
+ %X = getelementptr inbounds { i32, i32 }, { i32, i32 } *%A, i32 0, i32 1
+ br i1 %b, label %BB1, label %BB2
BB1:
- %Y = getelementptr { i32, i32 }, { i32, i32 } *%A, i32 0, i32 1
- br label %BB2
+ %Y = getelementptr { i32, i32 }, { i32, i32 } *%A, i32 0, i32 1
+ br label %BB2
BB2:
- ;; Suck GEPs into phi
- %B = phi i32* [ %X, %BB0 ], [ %Y, %BB1 ]
- ret i32* %B
-; CHECK-LABEL: @test8(
-; CHECK-NOT: phi
-; CHECK: BB2:
-; CHECK-NEXT: %B = getelementptr { i32, i32 }, { i32, i32 }* %A
-; CHECK-NEXT: ret i32* %B
+ ;; Suck GEPs into phi
+ %B = phi i32* [ %X, %BB0 ], [ %Y, %BB1 ]
+ ret i32* %B
}
define i32 @test9(i32* %A, i32* %B) {
+; CHECK-LABEL: @test9(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[C:%.*]] = icmp eq i32* [[A:%.*]], null
+; CHECK-NEXT: br i1 [[C]], label [[BB1:%.*]], label [[BB:%.*]]
+; CHECK: bb:
+; CHECK-NEXT: br label [[BB2:%.*]]
+; CHECK: bb1:
+; CHECK-NEXT: br label [[BB2]]
+; CHECK: bb2:
+; CHECK-NEXT: [[E_IN:%.*]] = phi i32* [ [[B:%.*]], [[BB]] ], [ [[A]], [[BB1]] ]
+; CHECK-NEXT: [[E:%.*]] = load i32, i32* [[E_IN]], align 1
+; CHECK-NEXT: ret i32 [[E]]
+;
entry:
%c = icmp eq i32* %A, null
br i1 %c, label %bb1, label %bb
@@ -159,15 +208,23 @@ bb1:
bb2:
%E = phi i32 [ %C, %bb ], [ %D, %bb1 ]
ret i32 %E
-; CHECK-LABEL: @test9(
-; CHECK: bb2:
-; CHECK-NEXT: phi i32* [ %B, %bb ], [ %A, %bb1 ]
-; CHECK-NEXT: %E = load i32, i32* %{{[^,]*}}, align 1
-; CHECK-NEXT: ret i32 %E
}
define i32 @test10(i32* %A, i32* %B) {
+; CHECK-LABEL: @test10(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[C:%.*]] = icmp eq i32* [[A:%.*]], null
+; CHECK-NEXT: br i1 [[C]], label [[BB1:%.*]], label [[BB:%.*]]
+; CHECK: bb:
+; CHECK-NEXT: br label [[BB2:%.*]]
+; CHECK: bb1:
+; CHECK-NEXT: br label [[BB2]]
+; CHECK: bb2:
+; CHECK-NEXT: [[E_IN:%.*]] = phi i32* [ [[B:%.*]], [[BB]] ], [ [[A]], [[BB1]] ]
+; CHECK-NEXT: [[E:%.*]] = load i32, i32* [[E_IN]], align 16
+; CHECK-NEXT: ret i32 [[E]]
+;
entry:
%c = icmp eq i32* %A, null
br i1 %c, label %bb1, label %bb
@@ -183,11 +240,6 @@ bb1:
bb2:
%E = phi i32 [ %C, %bb ], [ %D, %bb1 ]
ret i32 %E
-; CHECK-LABEL: @test10(
-; CHECK: bb2:
-; CHECK-NEXT: phi i32* [ %B, %bb ], [ %A, %bb1 ]
-; CHECK-NEXT: %E = load i32, i32* %{{[^,]*}}, align 16
-; CHECK-NEXT: ret i32 %E
}
@@ -195,6 +247,20 @@ bb2:
declare i1 @test11a()
define i1 @test11() {
+; CHECK-LABEL: @test11(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[B:%.*]] = call i1 @test11a()
+; CHECK-NEXT: br i1 [[B]], label [[ONE:%.*]], label [[TWO:%.*]]
+; CHECK: one:
+; CHECK-NEXT: [[C:%.*]] = call i1 @test11a()
+; CHECK-NEXT: br i1 [[C]], label [[TWO]], label [[END:%.*]]
+; CHECK: two:
+; CHECK-NEXT: [[D:%.*]] = call i1 @test11a()
+; CHECK-NEXT: br i1 [[D]], label [[ONE]], label [[END]]
+; CHECK: end:
+; CHECK-NEXT: [[Z:%.*]] = call i1 @test11a()
+; CHECK-NEXT: ret i1 [[Z]]
+;
entry:
%a = alloca i32
%i = ptrtoint i32* %a to i64
@@ -219,116 +285,151 @@ end:
store i32 10, i32* %g
%z = call i1 @test11a()
ret i1 %z
-; CHECK-LABEL: @test11(
-; CHECK-NOT: phi i32
-; CHECK: ret i1 %z
}
define i64 @test12(i1 %cond, i8* %Ptr, i64 %Val) {
+; CHECK-LABEL: @test12(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: br i1 [[COND:%.*]], label [[END:%.*]], label [[TWO:%.*]]
+; CHECK: two:
+; CHECK-NEXT: br label [[END]]
+; CHECK: end:
+; CHECK-NEXT: [[T869_0_OFF64:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[VAL:%.*]], [[TWO]] ]
+; CHECK-NEXT: [[T41:%.*]] = ptrtoint i8* [[PTR:%.*]] to i64
+; CHECK-NEXT: [[T2:%.*]] = add i64 [[T869_0_OFF64]], [[T41]]
+; CHECK-NEXT: ret i64 [[T2]]
+;
entry:
- %tmp41 = ptrtoint i8* %Ptr to i64
- %tmp42 = zext i64 %tmp41 to i128
+ %t41 = ptrtoint i8* %Ptr to i64
+ %t42 = zext i64 %t41 to i128
br i1 %cond, label %end, label %two
two:
- %tmp36 = zext i64 %Val to i128 ; <i128> [#uses=1]
- %tmp37 = shl i128 %tmp36, 64 ; <i128> [#uses=1]
- %ins39 = or i128 %tmp42, %tmp37 ; <i128> [#uses=1]
+ %t36 = zext i64 %Val to i128 ; <i128> [#uses=1]
+ %t37 = shl i128 %t36, 64 ; <i128> [#uses=1]
+ %ins39 = or i128 %t42, %t37 ; <i128> [#uses=1]
br label %end
end:
- %tmp869.0 = phi i128 [ %tmp42, %entry ], [ %ins39, %two ]
- %tmp32 = trunc i128 %tmp869.0 to i64 ; <i64> [#uses=1]
- %tmp29 = lshr i128 %tmp869.0, 64 ; <i128> [#uses=1]
- %tmp30 = trunc i128 %tmp29 to i64 ; <i64> [#uses=1]
+ %t869.0 = phi i128 [ %t42, %entry ], [ %ins39, %two ]
+ %t32 = trunc i128 %t869.0 to i64 ; <i64> [#uses=1]
+ %t29 = lshr i128 %t869.0, 64 ; <i128> [#uses=1]
+ %t30 = trunc i128 %t29 to i64 ; <i64> [#uses=1]
- %tmp2 = add i64 %tmp32, %tmp30
- ret i64 %tmp2
-; CHECK-LABEL: @test12(
-; CHECK-NOT: zext
-; CHECK: end:
-; CHECK-NEXT: phi i64 [ 0, %entry ], [ %Val, %two ]
-; CHECK-NOT: phi
-; CHECK: ret i64
+ %t2 = add i64 %t32, %t30
+ ret i64 %t2
}
declare void @test13f(double, i32)
define void @test13(i1 %cond, i32 %V1, double %Vald) {
+; CHECK-LABEL: @test13(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: br i1 [[COND:%.*]], label [[END:%.*]], label [[TWO:%.*]]
+; CHECK: two:
+; CHECK-NEXT: br label [[END]]
+; CHECK: end:
+; CHECK-NEXT: [[TMP0:%.*]] = phi double [ 0.000000e+00, [[ENTRY:%.*]] ], [ [[VALD:%.*]], [[TWO]] ]
+; CHECK-NEXT: call void @test13f(double [[TMP0]], i32 [[V1:%.*]])
+; CHECK-NEXT: ret void
+;
entry:
- %tmp42 = zext i32 %V1 to i128
+ %t42 = zext i32 %V1 to i128
br i1 %cond, label %end, label %two
two:
%Val = bitcast double %Vald to i64
- %tmp36 = zext i64 %Val to i128 ; <i128> [#uses=1]
- %tmp37 = shl i128 %tmp36, 64 ; <i128> [#uses=1]
- %ins39 = or i128 %tmp42, %tmp37 ; <i128> [#uses=1]
+ %t36 = zext i64 %Val to i128 ; <i128> [#uses=1]
+ %t37 = shl i128 %t36, 64 ; <i128> [#uses=1]
+ %ins39 = or i128 %t42, %t37 ; <i128> [#uses=1]
br label %end
end:
- %tmp869.0 = phi i128 [ %tmp42, %entry ], [ %ins39, %two ]
- %tmp32 = trunc i128 %tmp869.0 to i32
- %tmp29 = lshr i128 %tmp869.0, 64 ; <i128> [#uses=1]
- %tmp30 = trunc i128 %tmp29 to i64 ; <i64> [#uses=1]
- %tmp31 = bitcast i64 %tmp30 to double
-
- call void @test13f(double %tmp31, i32 %tmp32)
+ %t869.0 = phi i128 [ %t42, %entry ], [ %ins39, %two ]
+ %t32 = trunc i128 %t869.0 to i32
+ %t29 = lshr i128 %t869.0, 64 ; <i128> [#uses=1]
+ %t30 = trunc i128 %t29 to i64 ; <i64> [#uses=1]
+ %t31 = bitcast i64 %t30 to double
+
+ call void @test13f(double %t31, i32 %t32)
ret void
-; CHECK-LABEL: @test13(
-; CHECK-NOT: zext
-; CHECK: end:
-; CHECK-NEXT: phi double [ 0.000000e+00, %entry ], [ %Vald, %two ]
-; CHECK-NEXT: call void @test13f(double {{[^,]*}}, i32 %V1)
-; CHECK: ret void
}
define i640 @test14a(i320 %A, i320 %B, i1 %b1) {
+; CHECK-LABEL: @test14a(
+; CHECK-NEXT: BB0:
+; CHECK-NEXT: br label [[LOOP:%.*]]
+; CHECK: Loop:
+; CHECK-NEXT: [[C_IN:%.*]] = phi i320 [ [[A:%.*]], [[BB0:%.*]] ], [ [[B:%.*]], [[LOOP]] ]
+; CHECK-NEXT: br i1 [[B1:%.*]], label [[LOOP]], label [[EXIT:%.*]]
+; CHECK: Exit:
+; CHECK-NEXT: [[C:%.*]] = zext i320 [[C_IN]] to i640
+; CHECK-NEXT: ret i640 [[C]]
+;
BB0:
- %a = zext i320 %A to i640
- %b = zext i320 %B to i640
- br label %Loop
+ %a = zext i320 %A to i640
+ %b = zext i320 %B to i640
+ br label %Loop
Loop:
- %C = phi i640 [ %a, %BB0 ], [ %b, %Loop ]
- br i1 %b1, label %Loop, label %Exit
+ %C = phi i640 [ %a, %BB0 ], [ %b, %Loop ]
+ br i1 %b1, label %Loop, label %Exit
Exit: ; preds = %Loop
- ret i640 %C
-; CHECK-LABEL: @test14a(
-; CHECK: Loop:
-; CHECK-NEXT: phi i320
+ ret i640 %C
}
-define i160 @test14b(i320 %A, i320 %B, i1 %b1) {
+define i160 @test14b(i320 %pA, i320 %pB, i1 %b1) {
+; CHECK-LABEL: @test14b(
+; CHECK-NEXT: BB0:
+; CHECK-NEXT: [[A:%.*]] = trunc i320 [[PA:%.*]] to i160
+; CHECK-NEXT: [[B:%.*]] = trunc i320 [[PB:%.*]] to i160
+; CHECK-NEXT: br label [[LOOP:%.*]]
+; CHECK: Loop:
+; CHECK-NEXT: [[C:%.*]] = phi i160 [ [[A]], [[BB0:%.*]] ], [ [[B]], [[LOOP]] ]
+; CHECK-NEXT: br i1 [[B1:%.*]], label [[LOOP]], label [[EXIT:%.*]]
+; CHECK: Exit:
+; CHECK-NEXT: ret i160 [[C]]
+;
BB0:
- %a = trunc i320 %A to i160
- %b = trunc i320 %B to i160
- br label %Loop
+ %a = trunc i320 %pA to i160
+ %b = trunc i320 %pB to i160
+ br label %Loop
Loop:
- %C = phi i160 [ %a, %BB0 ], [ %b, %Loop ]
- br i1 %b1, label %Loop, label %Exit
+ %C = phi i160 [ %a, %BB0 ], [ %b, %Loop ]
+ br i1 %b1, label %Loop, label %Exit
Exit: ; preds = %Loop
- ret i160 %C
-; CHECK-LABEL: @test14b(
-; CHECK: Loop:
-; CHECK-NEXT: phi i160
+ ret i160 %C
}
declare i64 @test15a(i64)
define i64 @test15b(i64 %A, i1 %b) {
; CHECK-LABEL: @test15b(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: br i1 [[B:%.*]], label [[ONE:%.*]], label [[TWO:%.*]]
+; CHECK: one:
+; CHECK-NEXT: [[X_OFF64:%.*]] = phi i64 [ [[A:%.*]], [[ENTRY:%.*]] ], [ [[Y_OFF64:%.*]], [[TWO]] ]
+; CHECK-NEXT: [[C:%.*]] = call i64 @test15a(i64 [[X_OFF64]])
+; CHECK-NEXT: br label [[TWO]]
+; CHECK: two:
+; CHECK-NEXT: [[Y_OFF0:%.*]] = phi i64 [ [[A]], [[ENTRY]] ], [ [[C]], [[ONE]] ]
+; CHECK-NEXT: [[Y_OFF64]] = phi i64 [ [[A]], [[ENTRY]] ], [ 0, [[ONE]] ]
+; CHECK-NEXT: [[D:%.*]] = call i64 @test15a(i64 [[Y_OFF64]])
+; CHECK-NEXT: [[TMP0:%.*]] = and i64 [[D]], 1
+; CHECK-NEXT: [[D1_NOT:%.*]] = icmp eq i64 [[TMP0]], 0
+; CHECK-NEXT: br i1 [[D1_NOT]], label [[END:%.*]], label [[ONE]]
+; CHECK: end:
+; CHECK-NEXT: ret i64 [[Y_OFF0]]
+;
entry:
%i0 = zext i64 %A to i128
%i1 = shl i128 %i0, 64
%i = or i128 %i1, %i0
br i1 %b, label %one, label %two
-; CHECK: entry:
-; CHECK-NEXT: br i1 %b
one:
%x = phi i128 [%i, %entry], [%y, %two]
@@ -338,9 +439,6 @@ one:
%c1 = zext i64 %c to i128
br label %two
-; CHECK: one:
-; CHECK-NEXT: phi i64
-; CHECK-NEXT: %c = call i64 @test15a
two:
%y = phi i128 [%i, %entry], [%c1, %one]
@@ -350,20 +448,39 @@ two:
%d1 = trunc i64 %d to i1
br i1 %d1, label %one, label %end
-; CHECK: two:
-; CHECK-NEXT: phi i64
-; CHECK-NEXT: phi i64
-; CHECK-NEXT: %d = call i64 @test15a
end:
%g = trunc i128 %y to i64
ret i64 %g
-; CHECK: end:
-; CHECK-NEXT: ret i64
}
; PR6512 - Shouldn't merge loads from
diff erent addr spaces.
define i32 @test16(i32 addrspace(1)* %pointer1, i32 %flag, i32* %pointer2)
+; CHECK-LABEL: @test16(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[RETVAL:%.*]] = alloca i32, align 4
+; CHECK-NEXT: [[POINTER1_ADDR:%.*]] = alloca i32 addrspace(1)*, align 8
+; CHECK-NEXT: [[POINTER2_ADDR:%.*]] = alloca i32*, align 8
+; CHECK-NEXT: store i32 addrspace(1)* [[POINTER1:%.*]], i32 addrspace(1)** [[POINTER1_ADDR]], align 8
+; CHECK-NEXT: store i32* [[POINTER2:%.*]], i32** [[POINTER2_ADDR]], align 8
+; CHECK-NEXT: [[TOBOOL_NOT:%.*]] = icmp eq i32 [[FLAG:%.*]], 0
+; CHECK-NEXT: br i1 [[TOBOOL_NOT]], label [[IF_ELSE:%.*]], label [[IF_THEN:%.*]]
+; CHECK: return:
+; CHECK-NEXT: [[T7:%.*]] = load i32, i32* [[RETVAL]], align 4
+; CHECK-NEXT: ret i32 [[T7]]
+; CHECK: if.end:
+; CHECK-NEXT: [[STOREMERGE:%.*]] = phi i32 [ [[T5:%.*]], [[IF_ELSE]] ], [ [[T2:%.*]], [[IF_THEN]] ]
+; CHECK-NEXT: store i32 [[STOREMERGE]], i32* [[RETVAL]], align 4
+; CHECK-NEXT: br label [[RETURN:%.*]]
+; CHECK: if.then:
+; CHECK-NEXT: [[T1:%.*]] = load i32 addrspace(1)*, i32 addrspace(1)** [[POINTER1_ADDR]], align 8
+; CHECK-NEXT: [[T2]] = load i32, i32 addrspace(1)* [[T1]], align 4
+; CHECK-NEXT: br label [[IF_END:%.*]]
+; CHECK: if.else:
+; CHECK-NEXT: [[T3:%.*]] = load i32*, i32** [[POINTER2_ADDR]], align 8
+; CHECK-NEXT: [[T5]] = load i32, i32* [[T3]], align 4
+; CHECK-NEXT: br label [[IF_END]]
+;
nounwind {
entry:
%retval = alloca i32, align 4 ; <i32*> [#uses=2]
@@ -375,56 +492,71 @@ entry:
store i32 %flag, i32* %flag.addr
store i32* %pointer2, i32** %pointer2.addr
store i32 10, i32* %res
- %tmp = load i32, i32* %flag.addr ; <i32> [#uses=1]
- %tobool = icmp ne i32 %tmp, 0 ; <i1> [#uses=1]
+ %t = load i32, i32* %flag.addr ; <i32> [#uses=1]
+ %tobool = icmp ne i32 %t, 0 ; <i1> [#uses=1]
br i1 %tobool, label %if.then, label %if.else
return: ; preds = %if.end
- %tmp7 = load i32, i32* %retval ; <i32> [#uses=1]
- ret i32 %tmp7
+ %t7 = load i32, i32* %retval ; <i32> [#uses=1]
+ ret i32 %t7
if.end: ; preds = %if.else, %if.then
- %tmp6 = load i32, i32* %res ; <i32> [#uses=1]
- store i32 %tmp6, i32* %retval
+ %t6 = load i32, i32* %res ; <i32> [#uses=1]
+ store i32 %t6, i32* %retval
br label %return
if.then: ; preds = %entry
- %tmp1 = load i32 addrspace(1)*, i32 addrspace(1)** %pointer1.addr ; <i32 addrspace(1)*>
- %arrayidx = getelementptr i32, i32 addrspace(1)* %tmp1, i32 0 ; <i32 addrspace(1)*> [#uses=1]
- %tmp2 = load i32, i32 addrspace(1)* %arrayidx ; <i32> [#uses=1]
- store i32 %tmp2, i32* %res
+ %t1 = load i32 addrspace(1)*, i32 addrspace(1)** %pointer1.addr ; <i32 addrspace(1)*>
+ %arrayidx = getelementptr i32, i32 addrspace(1)* %t1, i32 0 ; <i32 addrspace(1)*> [#uses=1]
+ %t2 = load i32, i32 addrspace(1)* %arrayidx ; <i32> [#uses=1]
+ store i32 %t2, i32* %res
br label %if.end
if.else: ; preds = %entry
- %tmp3 = load i32*, i32** %pointer2.addr ; <i32*> [#uses=1]
- %arrayidx4 = getelementptr i32, i32* %tmp3, i32 0 ; <i32*> [#uses=1]
- %tmp5 = load i32, i32* %arrayidx4 ; <i32> [#uses=1]
- store i32 %tmp5, i32* %res
+ %t3 = load i32*, i32** %pointer2.addr ; <i32*> [#uses=1]
+ %arrayidx4 = getelementptr i32, i32* %t3, i32 0 ; <i32*> [#uses=1]
+ %t5 = load i32, i32* %arrayidx4 ; <i32> [#uses=1]
+ store i32 %t5, i32* %res
br label %if.end
}
; PR4413
declare i32 @ext()
-; CHECK-LABEL: @test17(
define i32 @test17(i1 %a) {
+; CHECK-LABEL: @test17(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: br i1 [[A:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
+; CHECK: bb1:
+; CHECK-NEXT: [[TMP0:%.*]] = tail call i32 @ext()
+; CHECK-NEXT: br label [[BB2]]
+; CHECK: bb2:
+; CHECK-NEXT: [[RES:%.*]] = phi i32 [ [[TMP0]], [[BB1]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-NEXT: ret i32 [[RES]]
+;
entry:
- br i1 %a, label %bb1, label %bb2
+ br i1 %a, label %bb1, label %bb2
bb1: ; preds = %entry
- %0 = tail call i32 @ext() ; <i32> [#uses=1]
- br label %bb2
+ %0 = tail call i32 @ext() ; <i32> [#uses=1]
+ br label %bb2
bb2: ; preds = %bb1, %entry
- %cond = phi i1 [ true, %bb1 ], [ false, %entry ] ; <i1> [#uses=1]
-; CHECK-NOT: phi i1
-; CHECK: %res = phi i32 [ %0, %bb1 ], [ 0, %entry ]
-; CHECK: ret i32 %res
- %val = phi i32 [ %0, %bb1 ], [ 0, %entry ] ; <i32> [#uses=1]
- %res = select i1 %cond, i32 %val, i32 0 ; <i32> [#uses=1]
- ret i32 %res
+ %cond = phi i1 [ true, %bb1 ], [ false, %entry ] ; <i1> [#uses=1]
+ %val = phi i32 [ %0, %bb1 ], [ 0, %entry ] ; <i32> [#uses=1]
+ %res = select i1 %cond, i32 %val, i32 0 ; <i32> [#uses=1]
+ ret i32 %res
}
define i1 @test18(i1 %cond) {
+; CHECK-LABEL: @test18(
+; CHECK-NEXT: br i1 [[COND:%.*]], label [[TRUE:%.*]], label [[FALSE:%.*]]
+; CHECK: true:
+; CHECK-NEXT: br label [[RET:%.*]]
+; CHECK: false:
+; CHECK-NEXT: br label [[RET]]
+; CHECK: ret:
+; CHECK-NEXT: ret i1 false
+;
%zero = alloca i32
%one = alloca i32
br i1 %cond, label %true, label %false
@@ -436,11 +568,18 @@ ret:
%ptr = phi i32* [ %zero, %true ] , [ %one, %false ]
%isnull = icmp eq i32* %ptr, null
ret i1 %isnull
-; CHECK-LABEL: @test18(
-; CHECK: ret i1 false
}
define i1 @test19(i1 %cond, double %x) {
+; CHECK-LABEL: @test19(
+; CHECK-NEXT: br i1 [[COND:%.*]], label [[TRUE:%.*]], label [[FALSE:%.*]]
+; CHECK: true:
+; CHECK-NEXT: br label [[RET:%.*]]
+; CHECK: false:
+; CHECK-NEXT: br label [[RET]]
+; CHECK: ret:
+; CHECK-NEXT: ret i1 true
+;
br i1 %cond, label %true, label %false
true:
br label %ret
@@ -450,11 +589,18 @@ ret:
%p = phi double [ %x, %true ], [ 0x7FF0000000000000, %false ]; RHS = +infty
%cmp = fcmp ule double %x, %p
ret i1 %cmp
-; CHECK-LABEL: @test19(
-; CHECK: ret i1 true
}
define i1 @test20(i1 %cond) {
+; CHECK-LABEL: @test20(
+; CHECK-NEXT: br i1 [[COND:%.*]], label [[TRUE:%.*]], label [[FALSE:%.*]]
+; CHECK: true:
+; CHECK-NEXT: br label [[RET:%.*]]
+; CHECK: false:
+; CHECK-NEXT: br label [[RET]]
+; CHECK: ret:
+; CHECK-NEXT: ret i1 false
+;
%a = alloca i32
%b = alloca i32
%c = alloca i32
@@ -467,11 +613,20 @@ ret:
%p = phi i32* [ %a, %true ], [ %b, %false ]
%r = icmp eq i32* %p, %c
ret i1 %r
-; CHECK-LABEL: @test20(
-; CHECK: ret i1 false
}
define i1 @test21(i1 %c1, i1 %c2) {
+; CHECK-LABEL: @test21(
+; CHECK-NEXT: br i1 [[C1:%.*]], label [[TRUE:%.*]], label [[FALSE:%.*]]
+; CHECK: true:
+; CHECK-NEXT: br label [[LOOP:%.*]]
+; CHECK: false:
+; CHECK-NEXT: br label [[LOOP]]
+; CHECK: loop:
+; CHECK-NEXT: br i1 [[C2:%.*]], label [[RET:%.*]], label [[LOOP]]
+; CHECK: ret:
+; CHECK-NEXT: ret i1 false
+;
%a = alloca i32
%b = alloca i32
%c = alloca i32
@@ -486,12 +641,21 @@ loop:
br i1 %c2, label %ret, label %loop
ret:
ret i1 %r
-; CHECK-LABEL: @test21(
-; CHECK: ret i1 false
}
define void @test22() {
; CHECK-LABEL: @test22(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: br label [[LOOP:%.*]]
+; CHECK: loop:
+; CHECK-NEXT: [[PHI:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[Y:%.*]], [[LOOP]] ]
+; CHECK-NEXT: [[Y]] = add i32 [[PHI]], 1
+; CHECK-NEXT: [[O:%.*]] = or i32 [[Y]], [[PHI]]
+; CHECK-NEXT: [[E:%.*]] = icmp eq i32 [[O]], [[Y]]
+; CHECK-NEXT: br i1 [[E]], label [[LOOP]], label [[RET:%.*]]
+; CHECK: ret:
+; CHECK-NEXT: ret void
+;
entry:
br label %loop
loop:
@@ -500,56 +664,78 @@ loop:
%o = or i32 %y, %phi
%e = icmp eq i32 %o, %y
br i1 %e, label %loop, label %ret
-; CHECK: br i1 %e
ret:
ret void
}
-define i32 @test23(i32 %A, i1 %b, i32 * %P) {
+define i32 @test23(i32 %A, i1 %pb, i32 * %P) {
+; CHECK-LABEL: @test23(
+; CHECK-NEXT: BB0:
+; CHECK-NEXT: [[PHI_BO:%.*]] = add i32 [[A:%.*]], 19
+; CHECK-NEXT: br label [[LOOP:%.*]]
+; CHECK: Loop:
+; CHECK-NEXT: [[B:%.*]] = phi i32 [ [[PHI_BO]], [[BB0:%.*]] ], [ 61, [[LOOP]] ]
+; CHECK-NEXT: store i32 [[B]], i32* [[P:%.*]], align 4
+; CHECK-NEXT: br i1 [[PB:%.*]], label [[LOOP]], label [[EXIT:%.*]]
+; CHECK: Exit:
+; CHECK-NEXT: ret i32 [[B]]
+;
BB0:
- br label %Loop
+ br label %Loop
Loop: ; preds = %Loop, %BB0
- ; PHI has same value always.
- %B = phi i32 [ %A, %BB0 ], [ 42, %Loop ]
- %D = add i32 %B, 19
- store i32 %D, i32* %P
- br i1 %b, label %Loop, label %Exit
+ ; PHI has same value always.
+ %B = phi i32 [ %A, %BB0 ], [ 42, %Loop ]
+ %D = add i32 %B, 19
+ store i32 %D, i32* %P
+ br i1 %pb, label %Loop, label %Exit
Exit: ; preds = %Loop
- %E = add i32 %B, 19
- ret i32 %E
-; CHECK-LABEL: @test23(
-; CHECK: %phi.bo = add i32 %A, 19
-; CHECK: Loop:
-; CHECK-NEXT: %B = phi i32 [ %phi.bo, %BB0 ], [ 61, %Loop ]
-; CHECK: Exit:
-; CHECK-NEXT: ret i32 %B
+ %E = add i32 %B, 19
+ ret i32 %E
}
define i32 @test24(i32 %A, i1 %cond) {
+; CHECK-LABEL: @test24(
+; CHECK-NEXT: BB0:
+; CHECK-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
+; CHECK: BB1:
+; CHECK-NEXT: br label [[BB2]]
+; CHECK: BB2:
+; CHECK-NEXT: [[C:%.*]] = add nuw i32 [[A:%.*]], 1
+; CHECK-NEXT: ret i32 [[C]]
+;
BB0:
- %X = add nuw nsw i32 %A, 1
- br i1 %cond, label %BB1, label %BB2
+ %X = add nuw nsw i32 %A, 1
+ br i1 %cond, label %BB1, label %BB2
BB1:
- %Y = add nuw i32 %A, 1
- br label %BB2
+ %Y = add nuw i32 %A, 1
+ br label %BB2
BB2:
- %C = phi i32 [ %X, %BB0 ], [ %Y, %BB1 ]
- ret i32 %C
-; CHECK-LABEL: @test24(
-; CHECK-NOT: phi
-; CHECK: BB2:
-; CHECK-NEXT: %C = add nuw i32 %A, 1
-; CHECK-NEXT: ret i32 %C
+ %C = phi i32 [ %X, %BB0 ], [ %Y, %BB1 ]
+ ret i32 %C
}
; Same as test11, but used to be missed due to a bug.
declare i1 @test25a()
define i1 @test25() {
+; CHECK-LABEL: @test25(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[B:%.*]] = call i1 @test25a()
+; CHECK-NEXT: br i1 [[B]], label [[ONE:%.*]], label [[TWO:%.*]]
+; CHECK: one:
+; CHECK-NEXT: [[C:%.*]] = call i1 @test25a()
+; CHECK-NEXT: br i1 [[C]], label [[TWO]], label [[END:%.*]]
+; CHECK: two:
+; CHECK-NEXT: [[D:%.*]] = call i1 @test25a()
+; CHECK-NEXT: br i1 [[D]], label [[ONE]], label [[END]]
+; CHECK: end:
+; CHECK-NEXT: [[Z:%.*]] = call i1 @test25a()
+; CHECK-NEXT: ret i1 [[Z]]
+;
entry:
%a = alloca i32
%i = ptrtoint i32* %a to i64
@@ -574,14 +760,34 @@ end:
store i32 10, i32* %g
%z = call i1 @test25a()
ret i1 %z
-; CHECK-LABEL: @test25(
-; CHECK-NOT: phi i32
-; CHECK: ret i1 %z
}
declare i1 @test26a()
define i1 @test26(i32 %n) {
+; CHECK-LABEL: @test26(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[B:%.*]] = call i1 @test26a()
+; CHECK-NEXT: br label [[ONE:%.*]]
+; CHECK: one:
+; CHECK-NEXT: [[C:%.*]] = call i1 @test26a()
+; CHECK-NEXT: switch i32 [[N:%.*]], label [[END:%.*]] [
+; CHECK-NEXT: i32 2, label [[TWO:%.*]]
+; CHECK-NEXT: i32 3, label [[THREE:%.*]]
+; CHECK-NEXT: ]
+; CHECK: two:
+; CHECK-NEXT: [[D:%.*]] = call i1 @test26a()
+; CHECK-NEXT: switch i32 [[N]], label [[END]] [
+; CHECK-NEXT: i32 10, label [[ONE]]
+; CHECK-NEXT: i32 30, label [[THREE]]
+; CHECK-NEXT: ]
+; CHECK: three:
+; CHECK-NEXT: [[E:%.*]] = call i1 @test26a()
+; CHECK-NEXT: br i1 [[E]], label [[ONE]], label [[TWO]]
+; CHECK: end:
+; CHECK-NEXT: [[Z:%.*]] = call i1 @test26a()
+; CHECK-NEXT: ret i1 [[Z]]
+;
entry:
%a = alloca i32
%i = ptrtoint i32* %a to i64
@@ -592,16 +798,16 @@ one:
%x = phi i64 [%y, %two], [%w, %three], [%i, %entry]
%c = call i1 @test26a()
switch i32 %n, label %end [
- i32 2, label %two
- i32 3, label %three
+ i32 2, label %two
+ i32 3, label %three
]
two:
%y = phi i64 [%x, %one], [%w, %three]
%d = call i1 @test26a()
switch i32 %n, label %end [
- i32 10, label %one
- i32 30, label %three
+ i32 10, label %one
+ i32 30, label %three
]
three:
@@ -617,14 +823,15 @@ end:
store i32 10, i32* %g
%z = call i1 @test26a()
ret i1 %z
-; CHECK-LABEL: @test26(
-; CHECK-NOT: phi i32
-; CHECK: ret i1 %z
}
-; CHECK-LABEL: @test27(
-; CHECK: ret i32 undef
define i32 @test27(i1 %b) {
+; CHECK-LABEL: @test27(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: br label [[DONE:%.*]]
+; CHECK: done:
+; CHECK-NEXT: ret i32 undef
+;
entry:
br label %done
done:
@@ -637,11 +844,28 @@ done:
; because we can shrink that constant to the smaller phi type.
define i1 @PR24766(i8 %x1, i8 %x2, i8 %condition) {
+; CHECK-LABEL: @PR24766(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[CONV:%.*]] = sext i8 [[CONDITION:%.*]] to i32
+; CHECK-NEXT: switch i32 [[CONV]], label [[EPILOG:%.*]] [
+; CHECK-NEXT: i32 0, label [[SW1:%.*]]
+; CHECK-NEXT: i32 1, label [[SW2:%.*]]
+; CHECK-NEXT: ]
+; CHECK: sw1:
+; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i8 [[X1:%.*]], [[X2:%.*]]
+; CHECK-NEXT: br label [[EPILOG]]
+; CHECK: sw2:
+; CHECK-NEXT: [[CMP2:%.*]] = icmp sle i8 [[X1]], [[X2]]
+; CHECK-NEXT: br label [[EPILOG]]
+; CHECK: epilog:
+; CHECK-NEXT: [[CONDITIONMET_SHRUNK:%.*]] = phi i1 [ false, [[ENTRY:%.*]] ], [ [[CMP2]], [[SW2]] ], [ [[CMP1]], [[SW1]] ]
+; CHECK-NEXT: ret i1 [[CONDITIONMET_SHRUNK]]
+;
entry:
%conv = sext i8 %condition to i32
switch i32 %conv, label %epilog [
- i32 0, label %sw1
- i32 1, label %sw2
+ i32 0, label %sw1
+ i32 1, label %sw2
]
sw1:
@@ -659,20 +883,34 @@ epilog:
%tobool = icmp ne i8 %conditionMet, 0
ret i1 %tobool
-; CHECK-LABEL: @PR24766(
-; CHECK: %[[RES:.*]] = phi i1 [ false, %entry ], [ %cmp2, %sw2 ], [ %cmp1, %sw1 ]
-; CHECK-NEXT: ret i1 %[[RES]]
}
; Same as above (a phi with more than 2 operands), but no constants
-
+
define i1 @PR24766_no_constants(i8 %x1, i8 %x2, i8 %condition, i1 %another_condition) {
+; CHECK-LABEL: @PR24766_no_constants(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[CONV:%.*]] = sext i8 [[CONDITION:%.*]] to i32
+; CHECK-NEXT: switch i32 [[CONV]], label [[EPILOG:%.*]] [
+; CHECK-NEXT: i32 0, label [[SW1:%.*]]
+; CHECK-NEXT: i32 1, label [[SW2:%.*]]
+; CHECK-NEXT: ]
+; CHECK: sw1:
+; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i8 [[X1:%.*]], [[X2:%.*]]
+; CHECK-NEXT: br label [[EPILOG]]
+; CHECK: sw2:
+; CHECK-NEXT: [[CMP2:%.*]] = icmp sle i8 [[X1]], [[X2]]
+; CHECK-NEXT: br label [[EPILOG]]
+; CHECK: epilog:
+; CHECK-NEXT: [[CONDITIONMET_IN:%.*]] = phi i1 [ [[ANOTHER_CONDITION:%.*]], [[ENTRY:%.*]] ], [ [[CMP2]], [[SW2]] ], [ [[CMP1]], [[SW1]] ]
+; CHECK-NEXT: ret i1 [[CONDITIONMET_IN]]
+;
entry:
%frombool0 = zext i1 %another_condition to i8
%conv = sext i8 %condition to i32
switch i32 %conv, label %epilog [
- i32 0, label %sw1
- i32 1, label %sw2
+ i32 0, label %sw1
+ i32 1, label %sw2
]
sw1:
@@ -690,19 +928,32 @@ epilog:
%tobool = icmp ne i8 %conditionMet, 0
ret i1 %tobool
-; CHECK-LABEL: @PR24766_no_constants(
-; CHECK: %[[RES:.*]] = phi i1 [ %another_condition, %entry ], [ %cmp2, %sw2 ], [ %cmp1, %sw1 ]
-; CHECK-NEXT: ret i1 %[[RES]]
}
; Same as above (a phi with more than 2 operands), but two constants
define i1 @PR24766_two_constants(i8 %x1, i8 %x2, i8 %condition) {
+; CHECK-LABEL: @PR24766_two_constants(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[CONV:%.*]] = sext i8 [[CONDITION:%.*]] to i32
+; CHECK-NEXT: switch i32 [[CONV]], label [[EPILOG:%.*]] [
+; CHECK-NEXT: i32 0, label [[SW1:%.*]]
+; CHECK-NEXT: i32 1, label [[SW2:%.*]]
+; CHECK-NEXT: ]
+; CHECK: sw1:
+; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i8 [[X1:%.*]], [[X2:%.*]]
+; CHECK-NEXT: br label [[EPILOG]]
+; CHECK: sw2:
+; CHECK-NEXT: br label [[EPILOG]]
+; CHECK: epilog:
+; CHECK-NEXT: [[CONDITIONMET:%.*]] = phi i1 [ false, [[ENTRY:%.*]] ], [ true, [[SW2]] ], [ [[CMP1]], [[SW1]] ]
+; CHECK-NEXT: ret i1 [[CONDITIONMET]]
+;
entry:
%conv = sext i8 %condition to i32
switch i32 %conv, label %epilog [
- i32 0, label %sw1
- i32 1, label %sw2
+ i32 0, label %sw1
+ i32 1, label %sw2
]
sw1:
@@ -720,20 +971,37 @@ epilog:
%tobool = icmp ne i8 %conditionMet, 0
ret i1 %tobool
-; CHECK-LABEL: @PR24766_two_constants(
-; CHECK: %[[RES:.*]] = phi i1 [ false, %entry ], [ true, %sw2 ], [ %cmp1, %sw1 ]
-; CHECK-NEXT: ret i1 %[[RES]]
}
; Same as above (a phi with more than 2 operands), but two constants and two variables
define i1 @PR24766_two_constants_two_var(i8 %x1, i8 %x2, i8 %condition) {
+; CHECK-LABEL: @PR24766_two_constants_two_var(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[CONV:%.*]] = sext i8 [[CONDITION:%.*]] to i32
+; CHECK-NEXT: switch i32 [[CONV]], label [[EPILOG:%.*]] [
+; CHECK-NEXT: i32 0, label [[SW1:%.*]]
+; CHECK-NEXT: i32 1, label [[SW2:%.*]]
+; CHECK-NEXT: i32 2, label [[SW3:%.*]]
+; CHECK-NEXT: ]
+; CHECK: sw1:
+; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i8 [[X1:%.*]], [[X2:%.*]]
+; CHECK-NEXT: br label [[EPILOG]]
+; CHECK: sw2:
+; CHECK-NEXT: [[CMP2:%.*]] = icmp sle i8 [[X1]], [[X2]]
+; CHECK-NEXT: br label [[EPILOG]]
+; CHECK: sw3:
+; CHECK-NEXT: br label [[EPILOG]]
+; CHECK: epilog:
+; CHECK-NEXT: [[CONDITIONMET_SHRUNK:%.*]] = phi i1 [ false, [[ENTRY:%.*]] ], [ [[CMP2]], [[SW2]] ], [ [[CMP1]], [[SW1]] ], [ true, [[SW3]] ]
+; CHECK-NEXT: ret i1 [[CONDITIONMET_SHRUNK]]
+;
entry:
%conv = sext i8 %condition to i32
switch i32 %conv, label %epilog [
- i32 0, label %sw1
- i32 1, label %sw2
- i32 2, label %sw3
+ i32 0, label %sw1
+ i32 1, label %sw2
+ i32 2, label %sw3
]
sw1:
@@ -756,15 +1024,20 @@ epilog:
%tobool = icmp ne i8 %conditionMet, 0
ret i1 %tobool
-; CHECK-LABEL: @PR24766_two_constants_two_var(
-; CHECK: %[[RES:.*]] = phi i1 [ false, %entry ], [ %cmp2, %sw2 ], [ %cmp1, %sw1 ], [ true, %sw3 ]
-; CHECK-NEXT: ret i1 %[[RES]]
}
-; CHECK-LABEL: phi_allnonzeroconstant
-; CHECK-NOT: phi i32
-; CHECK: ret i1 false
define i1 @phi_allnonzeroconstant(i1 %c, i32 %a, i32 %b) {
+; CHECK-LABEL: @phi_allnonzeroconstant(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: br i1 [[C:%.*]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
+; CHECK: if.then:
+; CHECK-NEXT: br label [[IF_END:%.*]]
+; CHECK: if.else:
+; CHECK-NEXT: call void @dummy()
+; CHECK-NEXT: br label [[IF_END]]
+; CHECK: if.end:
+; CHECK-NEXT: ret i1 false
+;
entry:
br i1 %c, label %if.then, label %if.else
@@ -785,12 +1058,18 @@ if.end: ; preds = %if.else, %if.then
declare void @dummy()
-; CHECK-LABEL: @phi_knownnonzero_eq
-; CHECK-LABEL: if.then:
-; CHECK-NOT: select
-; CHECK-LABEL: if.end:
-; CHECK: phi i32 [ 1, %if.then ]
define i1 @phi_knownnonzero_eq(i32 %n, i32 %s, i32* nocapture readonly %P) {
+; CHECK-LABEL: @phi_knownnonzero_eq(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[TOBOOL:%.*]] = icmp slt i32 [[N:%.*]], [[S:%.*]]
+; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
+; CHECK: if.then:
+; CHECK-NEXT: br label [[IF_END]]
+; CHECK: if.end:
+; CHECK-NEXT: [[A_0:%.*]] = phi i32 [ 1, [[IF_THEN]] ], [ [[N]], [[ENTRY:%.*]] ]
+; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[A_0]], 0
+; CHECK-NEXT: ret i1 [[CMP1]]
+;
entry:
%tobool = icmp slt i32 %n, %s
br i1 %tobool, label %if.end, label %if.then
@@ -807,12 +1086,18 @@ if.end: ; preds = %entry, %if.then
ret i1 %cmp1
}
-; CHECK-LABEL: @phi_knownnonzero_ne
-; CHECK-LABEL: if.then:
-; CHECK-NOT: select
-; CHECK-LABEL: if.end:
-; CHECK: phi i32 [ 1, %if.then ]
define i1 @phi_knownnonzero_ne(i32 %n, i32 %s, i32* nocapture readonly %P) {
+; CHECK-LABEL: @phi_knownnonzero_ne(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[TOBOOL:%.*]] = icmp slt i32 [[N:%.*]], [[S:%.*]]
+; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
+; CHECK: if.then:
+; CHECK-NEXT: br label [[IF_END]]
+; CHECK: if.end:
+; CHECK-NEXT: [[A_0:%.*]] = phi i32 [ 1, [[IF_THEN]] ], [ [[N]], [[ENTRY:%.*]] ]
+; CHECK-NEXT: [[CMP1:%.*]] = icmp ne i32 [[A_0]], 0
+; CHECK-NEXT: ret i1 [[CMP1]]
+;
entry:
%tobool = icmp slt i32 %n, %s
br i1 %tobool, label %if.end, label %if.then
@@ -829,12 +1114,20 @@ if.end: ; preds = %entry, %if.then
ret i1 %cmp1
}
-; CHECK-LABEL: @phi_knownnonzero_eq_2
-; CHECK-LABEL: if.then:
-; CHECK-NOT: select
-; CHECK-LABEL: if.end:
-; CHECK: phi i32 [ 2, %if.else ]
define i1 @phi_knownnonzero_eq_2(i32 %n, i32 %s, i32* nocapture readonly %P) {
+; CHECK-LABEL: @phi_knownnonzero_eq_2(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[TOBOOL:%.*]] = icmp slt i32 [[N:%.*]], [[S:%.*]]
+; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+; CHECK: if.then:
+; CHECK-NEXT: br i1 true, label [[IF_ELSE:%.*]], label [[IF_END]]
+; CHECK: if.else:
+; CHECK-NEXT: br label [[IF_END]]
+; CHECK: if.end:
+; CHECK-NEXT: [[A_0:%.*]] = phi i32 [ 2, [[IF_ELSE]] ], [ [[N]], [[ENTRY:%.*]] ], [ 2, [[IF_THEN]] ]
+; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[A_0]], 0
+; CHECK-NEXT: ret i1 [[CMP1]]
+;
entry:
%tobool = icmp slt i32 %n, %s
br i1 %tobool, label %if.then, label %if.end
@@ -855,12 +1148,20 @@ if.end: ; preds = %entry, %if.then
ret i1 %cmp1
}
-; CHECK-LABEL: @phi_knownnonzero_ne_2
-; CHECK-LABEL: if.then:
-; CHECK-NOT: select
-; CHECK-LABEL: if.end:
-; CHECK: phi i32 [ 2, %if.else ]
define i1 @phi_knownnonzero_ne_2(i32 %n, i32 %s, i32* nocapture readonly %P) {
+; CHECK-LABEL: @phi_knownnonzero_ne_2(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[TOBOOL:%.*]] = icmp slt i32 [[N:%.*]], [[S:%.*]]
+; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+; CHECK: if.then:
+; CHECK-NEXT: br i1 true, label [[IF_ELSE:%.*]], label [[IF_END]]
+; CHECK: if.else:
+; CHECK-NEXT: br label [[IF_END]]
+; CHECK: if.end:
+; CHECK-NEXT: [[A_0:%.*]] = phi i32 [ 2, [[IF_ELSE]] ], [ [[N]], [[ENTRY:%.*]] ], [ 2, [[IF_THEN]] ]
+; CHECK-NEXT: [[CMP1:%.*]] = icmp ne i32 [[A_0]], 0
+; CHECK-NEXT: ret i1 [[CMP1]]
+;
entry:
%tobool = icmp slt i32 %n, %s
br i1 %tobool, label %if.then, label %if.end
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