| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -O3 -S < %s | FileCheck %s |
| ; RUN: opt -passes='default<O3>' -S < %s | FileCheck %s |
| |
| define void @PR45682(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @PR45682( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[Y:%.*]], 0 |
| ; CHECK-NEXT: tail call void @llvm.assume(i1 [[CMP]]) |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %x.addr = alloca i32, align 4 |
| %y.addr = alloca i32, align 4 |
| store i32 %x, ptr %x.addr, align 4 |
| store i32 %y, ptr %y.addr, align 4 |
| %0 = load i32, ptr %y.addr, align 4 |
| %cmp = icmp sgt i32 %0, 0 |
| call void @llvm.assume(i1 %cmp) |
| %1 = load i32, ptr %y.addr, align 4 |
| %2 = load i32, ptr %x.addr, align 4 |
| %add = add nsw i32 %2, %1 |
| store i32 %add, ptr %x.addr, align 4 |
| %3 = load i32, ptr %x.addr, align 4 |
| %cmp1 = icmp eq i32 %3, -2147483648 |
| br i1 %cmp1, label %if.then, label %if.end |
| |
| if.then: |
| call void @v() |
| br label %if.end |
| |
| if.end: |
| ret void |
| } |
| |
| declare void @v() |
| declare void @llvm.assume(i1) |