[llvm] r338727 - [InstCombine] [NFC] Tests for select with binop fold
David Bolvansky via llvm-commits
llvm-commits at lists.llvm.org
Thu Aug 2 07:59:23 PDT 2018
Author: xbolva00
Date: Thu Aug 2 07:59:23 2018
New Revision: 338727
URL: http://llvm.org/viewvc/llvm-project?rev=338727&view=rev
Log:
[InstCombine] [NFC] Tests for select with binop fold
Modified:
llvm/trunk/test/Transforms/InstCombine/select-binop-icmp.ll
Modified: llvm/trunk/test/Transforms/InstCombine/select-binop-icmp.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/select-binop-icmp.ll?rev=338727&r1=338726&r2=338727&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/select-binop-icmp.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/select-binop-icmp.ll Thu Aug 2 07:59:23 2018
@@ -137,6 +137,99 @@ define i32 @select_xor_inv_icmp2(i32 %x,
ret i32 %C
}
+; TODO: Support for FP opcodes
+define float @select_fadd_icmp(float %x, float %y, float %z) {
+; CHECK-LABEL: @select_fadd_icmp(
+; CHECK-NEXT: [[A:%.*]] = fcmp oeq float [[X:%.*]], -0.000000e+00
+; CHECK-NEXT: [[B:%.*]] = fadd float [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], float [[B]], float [[Y:%.*]]
+; CHECK-NEXT: ret float [[C]]
+;
+ %A = fcmp oeq float %x, -0.0
+ %B = fadd float %x, %z
+ %C = select i1 %A, float %B, float %y
+ ret float %C
+}
+
+define float @select_fadd_icmp2(float %x, float %y, float %z) {
+; CHECK-LABEL: @select_fadd_icmp2(
+; CHECK-NEXT: [[A:%.*]] = fcmp ueq float [[X:%.*]], -0.000000e+00
+; CHECK-NEXT: [[B:%.*]] = fadd float [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], float [[B]], float [[Y:%.*]]
+; CHECK-NEXT: ret float [[C]]
+;
+ %A = fcmp ueq float %x, -0.0
+ %B = fadd float %x, %z
+ %C = select i1 %A, float %B, float %y
+ ret float %C
+}
+
+define float @select_fmul_icmp(float %x, float %y, float %z) {
+; CHECK-LABEL: @select_fmul_icmp(
+; CHECK-NEXT: [[A:%.*]] = fcmp oeq float [[X:%.*]], 1.000000e+00
+; CHECK-NEXT: [[B:%.*]] = fmul float [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], float [[B]], float [[Y:%.*]]
+; CHECK-NEXT: ret float [[C]]
+;
+ %A = fcmp oeq float %x, 1.0
+ %B = fmul float %x, %z
+ %C = select i1 %A, float %B, float %y
+ ret float %C
+}
+
+; TODO: Support for non-commutative opcodes
+define i32 @select_sub_icmp(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @select_sub_icmp(
+; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 0
+; CHECK-NEXT: [[B:%.*]] = sub i32 [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], i32 [[B]], i32 [[Y:%.*]]
+; CHECK-NEXT: ret i32 [[C]]
+;
+ %A = icmp eq i32 %x, 0
+ %B = sub i32 %x, %z
+ %C = select i1 %A, i32 %B, i32 %y
+ ret i32 %C
+}
+
+define i32 @select_shl_icmp(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @select_shl_icmp(
+; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 0
+; CHECK-NEXT: [[B:%.*]] = shl i32 [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], i32 [[B]], i32 [[Y:%.*]]
+; CHECK-NEXT: ret i32 [[C]]
+;
+ %A = icmp eq i32 %x, 0
+ %B = shl i32 %x, %z
+ %C = select i1 %A, i32 %B, i32 %y
+ ret i32 %C
+}
+
+define i32 @select_lshr_icmp(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @select_lshr_icmp(
+; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 0
+; CHECK-NEXT: [[B:%.*]] = lshr i32 [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], i32 [[B]], i32 [[Y:%.*]]
+; CHECK-NEXT: ret i32 [[C]]
+;
+ %A = icmp eq i32 %x, 0
+ %B = lshr i32 %x, %z
+ %C = select i1 %A, i32 %B, i32 %y
+ ret i32 %C
+}
+
+define i32 @select_ashr_icmp(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @select_ashr_icmp(
+; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 0
+; CHECK-NEXT: [[B:%.*]] = ashr i32 [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], i32 [[B]], i32 [[Y:%.*]]
+; CHECK-NEXT: ret i32 [[C]]
+;
+ %A = icmp eq i32 %x, 0
+ %B = ashr i32 %x, %z
+ %C = select i1 %A, i32 %B, i32 %y
+ ret i32 %C
+}
+
; Negative tests
define i32 @select_xor_icmp_bad_1(i32 %x, i32 %y, i32 %z, i32 %k) {
; CHECK-LABEL: @select_xor_icmp_bad_1(
@@ -295,97 +388,134 @@ define i32 @select_or_icmp_bad(i32 %x, i
ret i32 %C
}
-; TODO: Support for non-commutative opcodes
-define i32 @select_sub_icmp(i32 %x, i32 %y, i32 %z) {
-; CHECK-LABEL: @select_sub_icmp(
-; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 0
+define float @select_fadd_icmp_bad(float %x, float %y, float %z) {
+; CHECK-LABEL: @select_fadd_icmp_bad(
+; CHECK-NEXT: [[A:%.*]] = fcmp oeq float [[X:%.*]], -1.000000e+00
+; CHECK-NEXT: [[B:%.*]] = fadd float [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], float [[B]], float [[Y:%.*]]
+; CHECK-NEXT: ret float [[C]]
+;
+ %A = fcmp oeq float %x, -1.0
+ %B = fadd float %x, %z
+ %C = select i1 %A, float %B, float %y
+ ret float %C
+}
+
+define float @select_fadd_icmp_bad_2(float %x, float %y, float %z) {
+; CHECK-LABEL: @select_fadd_icmp_bad_2(
+; CHECK-NEXT: [[A:%.*]] = fcmp ueq float [[X:%.*]], -1.000000e+00
+; CHECK-NEXT: [[B:%.*]] = fadd float [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], float [[B]], float [[Y:%.*]]
+; CHECK-NEXT: ret float [[C]]
+;
+ %A = fcmp ueq float %x, -1.0
+ %B = fadd float %x, %z
+ %C = select i1 %A, float %B, float %y
+ ret float %C
+}
+
+define float @select_fmul_icmp_bad(float %x, float %y, float %z) {
+; CHECK-LABEL: @select_fmul_icmp_bad(
+; CHECK-NEXT: [[A:%.*]] = fcmp oeq float [[X:%.*]], 3.000000e+00
+; CHECK-NEXT: [[B:%.*]] = fmul float [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], float [[B]], float [[Y:%.*]]
+; CHECK-NEXT: ret float [[C]]
+;
+ %A = fcmp oeq float %x, 3.0
+ %B = fmul float %x, %z
+ %C = select i1 %A, float %B, float %y
+ ret float %C
+}
+
+define float @select_fdiv_icmp_bad(float %x, float %y, float %z) {
+; CHECK-LABEL: @select_fdiv_icmp_bad(
+; CHECK-NEXT: [[A:%.*]] = fcmp oeq float [[X:%.*]], 3.000000e+00
+; CHECK-NEXT: [[B:%.*]] = fdiv float [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], float [[B]], float [[Y:%.*]]
+; CHECK-NEXT: ret float [[C]]
+;
+ %A = fcmp oeq float %x, 3.0
+ %B = fdiv float %x, %z
+ %C = select i1 %A, float %B, float %y
+ ret float %C
+}
+
+define float @select_fsub_icmp_bad(float %x, float %y, float %z) {
+; CHECK-LABEL: @select_fsub_icmp_bad(
+; CHECK-NEXT: [[A:%.*]] = fcmp oeq float [[X:%.*]], 1.000000e+00
+; CHECK-NEXT: [[B:%.*]] = fsub float [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], float [[B]], float [[Y:%.*]]
+; CHECK-NEXT: ret float [[C]]
+;
+ %A = fcmp oeq float %x, 1.0
+ %B = fsub float %x, %z
+ %C = select i1 %A, float %B, float %y
+ ret float %C
+}
+
+define i32 @select_sub_icmp_bad(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @select_sub_icmp_bad(
+; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 1
; CHECK-NEXT: [[B:%.*]] = sub i32 [[X]], [[Z:%.*]]
; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], i32 [[B]], i32 [[Y:%.*]]
; CHECK-NEXT: ret i32 [[C]]
;
- %A = icmp eq i32 %x, 0
+ %A = icmp eq i32 %x, 1
%B = sub i32 %x, %z
%C = select i1 %A, i32 %B, i32 %y
ret i32 %C
}
-define i32 @select_shl_icmp(i32 %x, i32 %y, i32 %z) {
-; CHECK-LABEL: @select_shl_icmp(
+define i32 @select_sub_icmp_bad_sub_inv(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @select_sub_icmp_bad_sub_inv(
; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 0
-; CHECK-NEXT: [[B:%.*]] = shl i32 [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[B:%.*]] = sub i32 [[Z:%.*]], [[X]]
; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], i32 [[B]], i32 [[Y:%.*]]
; CHECK-NEXT: ret i32 [[C]]
;
%A = icmp eq i32 %x, 0
+ %B = sub i32 %z, %x
+ %C = select i1 %A, i32 %B, i32 %y
+ ret i32 %C
+}
+
+define i32 @select_shl_icmp_bad(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @select_shl_icmp_bad(
+; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 1
+; CHECK-NEXT: [[B:%.*]] = shl i32 [[X]], [[Z:%.*]]
+; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], i32 [[B]], i32 [[Y:%.*]]
+; CHECK-NEXT: ret i32 [[C]]
+;
+ %A = icmp eq i32 %x, 1
%B = shl i32 %x, %z
%C = select i1 %A, i32 %B, i32 %y
ret i32 %C
}
-define i32 @select_lshr_icmp(i32 %x, i32 %y, i32 %z) {
-; CHECK-LABEL: @select_lshr_icmp(
-; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 0
+define i32 @select_lshr_icmp_bad(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @select_lshr_icmp_bad(
+; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 1
; CHECK-NEXT: [[B:%.*]] = lshr i32 [[X]], [[Z:%.*]]
; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], i32 [[B]], i32 [[Y:%.*]]
; CHECK-NEXT: ret i32 [[C]]
;
- %A = icmp eq i32 %x, 0
+ %A = icmp eq i32 %x, 1
%B = lshr i32 %x, %z
%C = select i1 %A, i32 %B, i32 %y
ret i32 %C
}
-define i32 @select_ashr_icmp(i32 %x, i32 %y, i32 %z) {
-; CHECK-LABEL: @select_ashr_icmp(
-; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 0
+define i32 @select_ashr_icmp_bad(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @select_ashr_icmp_bad(
+; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 1
; CHECK-NEXT: [[B:%.*]] = ashr i32 [[X]], [[Z:%.*]]
; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], i32 [[B]], i32 [[Y:%.*]]
; CHECK-NEXT: ret i32 [[C]]
;
- %A = icmp eq i32 %x, 0
+ %A = icmp eq i32 %x, 1
%B = ashr i32 %x, %z
%C = select i1 %A, i32 %B, i32 %y
ret i32 %C
}
-; TODO: Support for FP opcodes
-define float @select_fadd_icmp(float %x, float %y, float %z) {
-; CHECK-LABEL: @select_fadd_icmp(
-; CHECK-NEXT: [[A:%.*]] = fcmp oeq float [[X:%.*]], -0.000000e+00
-; CHECK-NEXT: [[B:%.*]] = fadd float [[X]], [[Z:%.*]]
-; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], float [[B]], float [[Y:%.*]]
-; CHECK-NEXT: ret float [[C]]
-;
- %A = fcmp oeq float %x, -0.0
- %B = fadd float %x, %z
- %C = select i1 %A, float %B, float %y
- ret float %C
-}
-
-define float @select_fadd_icmp2(float %x, float %y, float %z) {
-; CHECK-LABEL: @select_fadd_icmp2(
-; CHECK-NEXT: [[A:%.*]] = fcmp ueq float [[X:%.*]], -0.000000e+00
-; CHECK-NEXT: [[B:%.*]] = fadd float [[X]], [[Z:%.*]]
-; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], float [[B]], float [[Y:%.*]]
-; CHECK-NEXT: ret float [[C]]
-;
- %A = fcmp ueq float %x, -0.0
- %B = fadd float %x, %z
- %C = select i1 %A, float %B, float %y
- ret float %C
-}
-
-define float @select_fmul_icmp(float %x, float %y, float %z) {
-; CHECK-LABEL: @select_fmul_icmp(
-; CHECK-NEXT: [[A:%.*]] = fcmp oeq float [[X:%.*]], 1.000000e+00
-; CHECK-NEXT: [[B:%.*]] = fmul float [[X]], [[Z:%.*]]
-; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], float [[B]], float [[Y:%.*]]
-; CHECK-NEXT: ret float [[C]]
-;
- %A = fcmp oeq float %x, 1.0
- %B = fmul float %x, %z
- %C = select i1 %A, float %B, float %y
- ret float %C
-}
-
!0 = !{!"branch_weights", i32 2, i32 10}
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