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53 lines
1.1 KiB
LLVM
53 lines
1.1 KiB
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: lmul r1, r0, r1, r0, r2, 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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define i64 @mul64(i64 %a, i64 %b) {
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entry:
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%0 = mul i64 %a, %b
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ret i64 %0
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}
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; CHECK: mul64:
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; CHECK: ldc r11, 0
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; CHECK-NEXT: lmul r11, r4, r0, r2, r11, r11
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; CHECK-NEXT: mul r0, r0, r3
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; CHECK-NEXT: lmul r0, r1, r1, r2, r11, r0
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; CHECK-NEXT: mov r0, r4
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define i64 @mul64_2(i64 %a, i32 %b) {
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entry:
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%0 = zext i32 %b to i64
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%1 = mul i64 %a, %0
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ret i64 %1
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}
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; CHECK: mul64_2:
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; CHECK: ldc r3, 0
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; CHECK-NEXT: lmul r3, r0, r0, r2, r3, r3
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; CHECK-NEXT: mul r1, r1, r2
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; CHECK-NEXT: add r1, r3, r1
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; CHECK-NEXT: retsp 0
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