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TheRock/compiler/amd-llvm/llvm/test/CodeGen/Thumb2/abds-crash.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

57 lines
2.1 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc < %s -mtriple=thumbv7-- | FileCheck %s
; Regression from #92576 - ensure abds doesn't get truncated after type legalisation
define void @vp8_rd_pick_inter_mode() {
; CHECK-LABEL: vp8_rd_pick_inter_mode:
; CHECK: @ %bb.0:
; CHECK-NEXT: push {r4, lr}
; CHECK-NEXT: movs r4, #0
; CHECK-NEXT: ldr r0, [r0]
; CHECK-NEXT: ldr r2, [r4]
; CHECK-NEXT: movs r1, #180
; CHECK-NEXT: str r0, [r1]
; CHECK-NEXT: movs r1, #188
; CHECK-NEXT: sxth r0, r0
; CHECK-NEXT: str r2, [r1]
; CHECK-NEXT: sxth r1, r2
; CHECK-NEXT: subs r0, r0, r1
; CHECK-NEXT: it mi
; CHECK-NEXT: rsbmi r0, r0, #0
; CHECK-NEXT: bl use
; CHECK-NEXT: ldrsh.w r0, [r4]
; CHECK-NEXT: ldrsh.w r1, [r0]
; CHECK-NEXT: subs r0, r1, r0
; CHECK-NEXT: it mi
; CHECK-NEXT: rsbmi r0, r0, #0
; CHECK-NEXT: bl use
%gep180 = getelementptr inbounds i8, ptr null, i32 180
%gep188 = getelementptr inbounds i8, ptr null, i32 188
%i0 = load i32, ptr poison, align 4
store i32 %i0, ptr %gep180, align 4
%i1 = load i32, ptr null, align 4
store i32 %i1, ptr %gep188, align 4
%sext.i0 = shl i32 %i0, 16
%sext.i1 = shl i32 %i1, 16
%conv.i0 = ashr exact i32 %sext.i0, 16
%conv.i1 = ashr exact i32 %sext.i1, 16
%sub.i01 = sub nsw i32 %conv.i0, %conv.i1
%i2 = call i32 @llvm.abs.i32(i32 %sub.i01, i1 true)
call fastcc void @use(i32 %i2)
%i3 = load i16, ptr poison, align 4
%i4 = load i16, ptr null, align 4
%conv.i3 = sext i16 %i3 to i32
%conv.i4 = sext i16 %i4 to i32
%sub.i34 = sub nsw i32 %conv.i3, %conv.i4
%i5 = call i32 @llvm.abs.i32(i32 %sub.i34, i1 true)
call fastcc void @use(i32 %i5)
unreachable
}
declare void @use(i32)
attributes #0 = { "target-features"="+armv7-a,+d32,+dsp,+fp64,+neon,+thumb-mode,+vfp2,+vfp2sp,+vfp3,+vfp3d16,+vfp3d16sp,+vfp3sp,-aes,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fullfp16,-sha2,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }