llvm-project/llvm/test/CodeGen/X86/2005-01-17-CycleInDAG.ll
Nikita Popov 2f448bf509 [X86] Migrate tests to use opaque pointers (NFC)
Test updates were performed using:
https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34

These are only the test updates where the test passed without
further modification (which is almost all of them, as the backend
is largely pointer-type agnostic).
2022-06-22 14:38:25 +02:00

21 lines
593 B
LLVM

; This testcase was distilled from 132.ijpeg. Bsaically we cannot fold the
; load into the sub instruction here as it induces a cycle in the dag, which
; is invalid code (there is no correct way to order the instruction). Check
; that we do not fold the load into the sub.
; RUN: llc < %s -mtriple=i686-- | FileCheck %s
@GLOBAL = external dso_local global i32
define i32 @test(ptr %P1, ptr %P2, ptr %P3) nounwind {
; CHECK-LABEL: test:
entry:
%L = load i32, ptr @GLOBAL
store i32 12, ptr %P2
%Y = load i32, ptr %P3
%Z = sub i32 %Y, %L
ret i32 %Z
; CHECK-NOT: {{sub.*GLOBAL}}
}