29 lines
777 B
LLVM
29 lines
777 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown -mattr=+bmi2 | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-unknown -mcpu=core-avx2 | FileCheck %s
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define i128 @f1(i64 %a, i64 %b) {
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; CHECK-LABEL: f1:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movq %rdi, %rdx
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; CHECK-NEXT: mulxq %rsi, %rax, %rdx
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; CHECK-NEXT: retq
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%x = zext i64 %a to i128
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%y = zext i64 %b to i128
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%r = mul i128 %x, %y
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ret i128 %r
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}
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define i128 @f2(i64 %a, i64* %p) {
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; CHECK-LABEL: f2:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movq %rdi, %rdx
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; CHECK-NEXT: mulxq (%rsi), %rax, %rdx
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; CHECK-NEXT: retq
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%b = load i64, i64* %p
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%x = zext i64 %a to i128
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%y = zext i64 %b to i128
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%r = mul i128 %x, %y
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ret i128 %r
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}
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