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29 lines
703 B
LLVM
29 lines
703 B
LLVM
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; RUN: llvm-as < %s | llc -march=xcore | FileCheck %s
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; Only needs one ladd
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define i64 @f1(i32 %x, i32 %y) nounwind {
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entry:
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%0 = zext i32 %x to i64 ; <i64> [#uses=1]
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%1 = zext i32 %y to i64 ; <i64> [#uses=1]
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%2 = add i64 %1, %0 ; <i64> [#uses=1]
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ret i64 %2
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}
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; CHECK: f1:
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; CHECK: ldc r2, 0
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; CHECK-NEXT: ladd r1, r0, r1, r0, r2
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; CHECK-NEXT: retsp 0
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; Only needs one lsub and one neg
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define i64 @f2(i32 %x, i32 %y) nounwind {
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entry:
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%0 = zext i32 %x to i64 ; <i64> [#uses=1]
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%1 = zext i32 %y to i64 ; <i64> [#uses=1]
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%2 = sub i64 %1, %0 ; <i64> [#uses=1]
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ret i64 %2
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}
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; CHECK: f2:
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; CHECK: ldc r2, 0
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; CHECK-NEXT: lsub r1, r0, r1, r0, r2
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; CHECK-NEXT: neg r1, r1
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; CHECK-NEXT: retsp 0
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