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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/sunkaddr-ext.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

27 lines
797 B
LLVM

; 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(ptr %arg1, i32 %arg2, i8 %arg3) #0 {
%tmp1 = add i32 -2147483648, %arg2
%tmp2 = add i32 -2147483648, %tmp1
%tmp3 = getelementptr i8, ptr %arg1, i32 %arg2
br label %bb1
bb1:
%tmp4 = getelementptr i8, ptr %arg1, i32 %tmp2
store i8 %arg3, ptr %tmp4
ret void;
}
; CHECK-LABEL: test_sink:
; CHECK: movslq %esi, [[TEMP:%[a-z0-9]+]]
; CHECK: movb %dl, (%rdi,[[TEMP]])
; CHECK: retq