| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 |
| ; RUN: opt < %s -passes=newgvn -S | FileCheck %s |
| ; PR2503 |
| |
| @g_3 = external global i8 ; <ptr> [#uses=2] |
| |
| define i8 @func_1(i32 %x, i32 %y) nounwind { |
| ; CHECK-LABEL: define i8 @func_1( |
| ; CHECK-SAME: i32 [[X:%.*]], i32 [[Y:%.*]]) #[[ATTR0:[0-9]+]] { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[A:%.*]] = alloca i8, align 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X]], [[Y]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[IFELSE:%.*]], label [[IFTHEN:%.*]] |
| ; CHECK: ifthen: |
| ; CHECK-NEXT: br label [[IFEND:%.*]] |
| ; CHECK: ifelse: |
| ; CHECK-NEXT: [[TMP3:%.*]] = load i8, ptr @g_3, align 1 |
| ; CHECK-NEXT: store i8 [[TMP3]], ptr [[A]], align 1 |
| ; CHECK-NEXT: br label [[AFTERFOR:%.*]] |
| ; CHECK: forcond: |
| ; CHECK-NEXT: store i8 poison, ptr null, align 1 |
| ; CHECK-NEXT: br i1 false, label [[AFTERFOR]], label [[FORBODY:%.*]] |
| ; CHECK: forbody: |
| ; CHECK-NEXT: store i8 poison, ptr null, align 1 |
| ; CHECK-NEXT: br label [[FORINC:%.*]] |
| ; CHECK: forinc: |
| ; CHECK-NEXT: store i8 poison, ptr null, align 1 |
| ; CHECK-NEXT: br label [[FORCOND:%.*]] |
| ; CHECK: afterfor: |
| ; CHECK-NEXT: ret i8 [[TMP3]] |
| ; CHECK: ifend: |
| ; CHECK-NEXT: ret i8 0 |
| ; |
| entry: |
| %A = alloca i8 |
| %cmp = icmp eq i32 %x, %y |
| br i1 %cmp, label %ifelse, label %ifthen |
| |
| ifthen: ; preds = %entry |
| br label %ifend |
| |
| ifelse: ; preds = %entry |
| %tmp3 = load i8, ptr @g_3 ; <i8> [#uses=0] |
| store i8 %tmp3, ptr %A |
| br label %afterfor |
| |
| forcond: ; preds = %forinc |
| br i1 false, label %afterfor, label %forbody |
| |
| forbody: ; preds = %forcond |
| br label %forinc |
| |
| forinc: ; preds = %forbody |
| br label %forcond |
| |
| afterfor: ; preds = %forcond, %forcond.thread |
| %tmp10 = load i8, ptr @g_3 ; <i8> [#uses=0] |
| ret i8 %tmp10 |
| |
| ifend: ; preds = %afterfor, %ifthen |
| ret i8 0 |
| } |
