569d8945f3
If the VT is i2, then 2 is really -2. Test has not been commited yet, but diff shows the change. Fixes PR55644. Differential Revision: https://reviews.llvm.org/D126213
20 lines
593 B
LLVM
20 lines
593 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=aarch64-apple-darwin | FileCheck %s
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define i1 @f(i2 %0) {
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; CHECK-LABEL: f:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: sbfx w8, w0, #0, #2
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; CHECK-NEXT: lsl w8, w8, #1
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; CHECK-NEXT: neg w9, w8
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; CHECK-NEXT: lsl w9, w9, #30
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; CHECK-NEXT: cmn w8, w9, asr #30
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; CHECK-NEXT: cset w0, ne
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; CHECK-NEXT: ret
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%2 = call { i2, i1 } @llvm.smul.with.overflow.i2(i2 %0, i2 -2)
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%3 = extractvalue { i2, i1 } %2, 1
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ret i1 %3
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}
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declare { i2, i1 } @llvm.smul.with.overflow.i2(i2, i2)
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