| ; RUN: llc < %s | FileCheck %s |
| |
| ; Test to make sure that if math that can roll over has been used we don't |
| ; use the potential overflow as the basis for an address calculation later by |
| ; sinking it into a different basic block. |
| |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.9.0" |
| |
| ; Function Attrs: nounwind ssp uwtable |
| define void @test_sink(i8* %arg1, i32 %arg2, i8 %arg3) #0 { |
| %tmp1 = add i32 -2147483648, %arg2 |
| %tmp2 = add i32 -2147483648, %tmp1 |
| %tmp3 = getelementptr i8, i8* %arg1, i32 %arg2 |
| br label %bb1 |
| |
| bb1: |
| %tmp4 = getelementptr i8, i8* %arg1, i32 %tmp2 |
| store i8 %arg3, i8* %tmp4 |
| ret void; |
| } |
| |
| ; CHECK-LABEL: test_sink: |
| ; CHECK: movslq %esi, [[TEMP:%[a-z0-9]+]] |
| ; CHECK: movb %dl, (%rdi,[[TEMP]]) |
| ; CHECK: retq |
