[llvm] b2e884b - [InstCombine] add tests for casted phi; NFC
Sanjay Patel via llvm-commits
llvm-commits at lists.llvm.org
Mon Feb 3 09:05:36 PST 2020
Author: Sanjay Patel
Date: 2020-02-03T11:54:47-05:00
New Revision: b2e884bee7ef6e22881861c5b720fa9934d46ae9
URL: https://github.com/llvm/llvm-project/commit/b2e884bee7ef6e22881861c5b720fa9934d46ae9
DIFF: https://github.com/llvm/llvm-project/commit/b2e884bee7ef6e22881861c5b720fa9934d46ae9.diff
LOG: [InstCombine] add tests for casted phi; NFC
Added:
Modified:
llvm/test/Transforms/InstCombine/cast_phi.ll
Removed:
################################################################################
diff --git a/llvm/test/Transforms/InstCombine/cast_phi.ll b/llvm/test/Transforms/InstCombine/cast_phi.ll
index 0589adde4813..8c6977fe35e8 100644
--- a/llvm/test/Transforms/InstCombine/cast_phi.ll
+++ b/llvm/test/Transforms/InstCombine/cast_phi.ll
@@ -2,6 +2,8 @@
; RUN: opt < %s -instcombine -S | FileCheck %s
; RUN: opt < %s -passes=instcombine -S | FileCheck %s
+target datalayout = "n32:64"
+
define void @MainKernel(i32 %iNumSteps, i32 %tid, i32 %base) {
; CHECK-LABEL: @MainKernel(
; CHECK-NEXT: [[CALLA:%.*]] = alloca [258 x float], align 4
@@ -171,3 +173,143 @@ define void @MainKernel(i32 %iNumSteps, i32 %tid, i32 %base) {
%cmp13 = icmp sgt i32 %sub, 0
br i1 %cmp13, label %.bb3, label %.bb8
}
+
+declare i32 @get_i32()
+declare i3 @get_i3()
+declare void @bar()
+
+define i37 @zext_from_legal_to_illegal_type(i32 %x) {
+; CHECK-LABEL: @zext_from_legal_to_illegal_type(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], 42
+; CHECK-NEXT: br i1 [[CMP]], label [[T:%.*]], label [[F:%.*]]
+; CHECK: t:
+; CHECK-NEXT: [[Y:%.*]] = call i32 @get_i32()
+; CHECK-NEXT: [[PHITMP:%.*]] = zext i32 [[Y]] to i37
+; CHECK-NEXT: br label [[EXIT:%.*]]
+; CHECK: f:
+; CHECK-NEXT: call void @bar()
+; CHECK-NEXT: br label [[EXIT]]
+; CHECK: exit:
+; CHECK-NEXT: [[P:%.*]] = phi i37 [ [[PHITMP]], [[T]] ], [ 3, [[F]] ]
+; CHECK-NEXT: ret i37 [[P]]
+;
+entry:
+ %cmp = icmp eq i32 %x, 42
+ br i1 %cmp, label %t, label %f
+
+t:
+ %y = call i32 @get_i32()
+ br label %exit
+
+f:
+ call void @bar()
+ br label %exit
+
+exit:
+ %p = phi i32 [ %y, %t ], [ 3, %f ]
+ %r = zext i32 %p to i37
+ ret i37 %r
+}
+
+define i37 @zext_from_illegal_to_illegal_type(i32 %x) {
+; CHECK-LABEL: @zext_from_illegal_to_illegal_type(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], 42
+; CHECK-NEXT: br i1 [[CMP]], label [[T:%.*]], label [[F:%.*]]
+; CHECK: t:
+; CHECK-NEXT: [[Y:%.*]] = call i3 @get_i3()
+; CHECK-NEXT: [[PHITMP:%.*]] = zext i3 [[Y]] to i37
+; CHECK-NEXT: br label [[EXIT:%.*]]
+; CHECK: f:
+; CHECK-NEXT: call void @bar()
+; CHECK-NEXT: br label [[EXIT]]
+; CHECK: exit:
+; CHECK-NEXT: [[P:%.*]] = phi i37 [ [[PHITMP]], [[T]] ], [ 3, [[F]] ]
+; CHECK-NEXT: ret i37 [[P]]
+;
+entry:
+ %cmp = icmp eq i32 %x, 42
+ br i1 %cmp, label %t, label %f
+
+t:
+ %y = call i3 @get_i3()
+ br label %exit
+
+f:
+ call void @bar()
+ br label %exit
+
+exit:
+ %p = phi i3 [ %y, %t ], [ 3, %f ]
+ %r = zext i3 %p to i37
+ ret i37 %r
+}
+
+define i64 @zext_from_legal_to_legal_type(i32 %x) {
+; CHECK-LABEL: @zext_from_legal_to_legal_type(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], 42
+; CHECK-NEXT: br i1 [[CMP]], label [[T:%.*]], label [[F:%.*]]
+; CHECK: t:
+; CHECK-NEXT: [[Y:%.*]] = call i32 @get_i32()
+; CHECK-NEXT: [[PHITMP:%.*]] = zext i32 [[Y]] to i64
+; CHECK-NEXT: br label [[EXIT:%.*]]
+; CHECK: f:
+; CHECK-NEXT: call void @bar()
+; CHECK-NEXT: br label [[EXIT]]
+; CHECK: exit:
+; CHECK-NEXT: [[P:%.*]] = phi i64 [ [[PHITMP]], [[T]] ], [ 3, [[F]] ]
+; CHECK-NEXT: ret i64 [[P]]
+;
+entry:
+ %cmp = icmp eq i32 %x, 42
+ br i1 %cmp, label %t, label %f
+
+t:
+ %y = call i32 @get_i32()
+ br label %exit
+
+f:
+ call void @bar()
+ br label %exit
+
+exit:
+ %p = phi i32 [ %y, %t ], [ 3, %f ]
+ %r = zext i32 %p to i64
+ ret i64 %r
+}
+
+define i64 @zext_from_illegal_to_legal_type(i32 %x) {
+; CHECK-LABEL: @zext_from_illegal_to_legal_type(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], 42
+; CHECK-NEXT: br i1 [[CMP]], label [[T:%.*]], label [[F:%.*]]
+; CHECK: t:
+; CHECK-NEXT: [[Y:%.*]] = call i3 @get_i3()
+; CHECK-NEXT: br label [[EXIT:%.*]]
+; CHECK: f:
+; CHECK-NEXT: call void @bar()
+; CHECK-NEXT: br label [[EXIT]]
+; CHECK: exit:
+; CHECK-NEXT: [[P:%.*]] = phi i3 [ [[Y]], [[T]] ], [ 3, [[F]] ]
+; CHECK-NEXT: [[R:%.*]] = zext i3 [[P]] to i64
+; CHECK-NEXT: ret i64 [[R]]
+;
+entry:
+ %cmp = icmp eq i32 %x, 42
+ br i1 %cmp, label %t, label %f
+
+t:
+ %y = call i3 @get_i3()
+ br label %exit
+
+f:
+ call void @bar()
+ br label %exit
+
+exit:
+ %p = phi i3 [ %y, %t ], [ 3, %f ]
+ %r = zext i3 %p to i64
+ ret i64 %r
+}
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