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https://github.com/c64scene-ar/llvm-6502.git
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a7e78402b8
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98152 91177308-0d34-0410-b5e6-96231b3b80d8
31 lines
651 B
LLVM
31 lines
651 B
LLVM
; RUN: llc < %s -march=xcore | FileCheck %s
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define i64 @umul_lohi(i32 %a, i32 %b) {
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entry:
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%0 = zext i32 %a to i64
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%1 = zext i32 %b to i64
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%2 = mul i64 %1, %0
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ret i64 %2
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}
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; CHECK: umul_lohi:
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; CHECK: ldc r2, 0
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; CHECK-NEXT: mov r3, r2
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; CHECK-NEXT: maccu r2, r3, r1, r0
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; CHECK-NEXT: mov r0, r3
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; CHECK-NEXT: mov r1, r2
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; CHECK-NEXT: retsp 0
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define i64 @smul_lohi(i32 %a, i32 %b) {
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entry:
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%0 = sext i32 %a to i64
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%1 = sext i32 %b to i64
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%2 = mul i64 %1, %0
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ret i64 %2
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}
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; CHECK: smul_lohi:
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; CHECK: ldc r2, 0
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; CHECK-NEXT: mov r3, r2
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; CHECK-NEXT: maccs r2, r3, r1, r0
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; CHECK-NEXT: mov r0, r3
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; CHECK-NEXT: mov r1, r2
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; CHECK-NEXT: retsp 0
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