bolt/deps/llvm-18.1.8/llvm/test/Transforms/NewGVN/load-constant-mem.ll

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2025-02-14 19:21:04 +01:00
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=newgvn -S | FileCheck %s
; PR4189
@G = external constant [4 x i32]
define i32 @test(ptr %p, i32 %i) nounwind {
; CHECK-LABEL: @test(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[P:%.*]] = getelementptr [4 x i32], ptr @G, i32 0, i32 [[I:%.*]]
; CHECK-NEXT: store i8 4, ptr [[P:%.*]]
; CHECK-NEXT: ret i32 0
;
entry:
%P = getelementptr [4 x i32], ptr @G, i32 0, i32 %i
%A = load i32, ptr %P
store i8 4, ptr %p
%B = load i32, ptr %P
%C = sub i32 %A, %B
ret i32 %C
}