17 lines
477 B
LLVM
17 lines
477 B
LLVM
; RUN: llc < %s -mtriple=thumbv6m-none-eabi | FileCheck %s
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define i1 @signed_multiplication_did_overflow(i32, i32) {
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; CHECK-LABEL: signed_multiplication_did_overflow:
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entry-block:
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%2 = tail call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %0, i32 %1)
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%3 = extractvalue { i32, i1 } %2, 1
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ret i1 %3
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; CHECK: mov r2, r1
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; CHECK: asrs r1, r0, #31
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; CHECK: asrs r3, r2, #31
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; CHECK: bl __aeabi_lmul
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}
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declare { i32, i1 } @llvm.smul.with.overflow.i32(i32, i32)
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