28 lines
628 B
LLVM
28 lines
628 B
LLVM
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; RUN: llc -march=hexagon < %s | FileCheck %s
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; Test that we generate 64-bit mutiply accumulate/subtract.
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; CHECK-LABEL: f0:
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; CHECK: r{{[0-9]+}}:{{[0-9]+}} += mpyu
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define i64 @f0(i64 %a0, i32 %a1, i32 %a2) #0 {
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b0:
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%v0 = zext i32 %a1 to i64
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%v1 = zext i32 %a2 to i64
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%v2 = mul nsw i64 %v1, %v0
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%v3 = add nsw i64 %v2, %a0
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ret i64 %v3
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}
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; CHECK-LABEL: f1:
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; CHECK: r{{[0-9]+}}:{{[0-9]+}} -= mpyu
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define i64 @f1(i64 %a0, i32 %a1, i32 %a2) #0 {
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b0:
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%v0 = zext i32 %a1 to i64
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%v1 = zext i32 %a2 to i64
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%v2 = mul nsw i64 %v1, %v0
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%v3 = sub nsw i64 %a0, %v2
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ret i64 %v3
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}
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attributes #0 = { nounwind readnone }
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