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40 lines
804 B
LLVM
40 lines
804 B
LLVM
; Test the three-operand forms of subtraction.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
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; Check SRK.
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define i32 @f1(i32 %a, i32 %b, i32 %c) {
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; CHECK-LABEL: f1:
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; CHECK: srk %r2, %r3, %r4
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; CHECK: br %r14
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%sub = sub i32 %b, %c
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ret i32 %sub
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}
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; Check that we can still use SR in obvious cases.
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define i32 @f2(i32 %a, i32 %b) {
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; CHECK-LABEL: f2:
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; CHECK: sr %r2, %r3
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; CHECK: br %r14
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%sub = sub i32 %a, %b
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ret i32 %sub
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}
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; Check SGRK.
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define i64 @f3(i64 %a, i64 %b, i64 %c) {
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; CHECK-LABEL: f3:
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; CHECK: sgrk %r2, %r3, %r4
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; CHECK: br %r14
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%sub = sub i64 %b, %c
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ret i64 %sub
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}
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; Check that we can still use SGR in obvious cases.
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define i64 @f4(i64 %a, i64 %b) {
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; CHECK-LABEL: f4:
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; CHECK: sgr %r2, %r3
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; CHECK: br %r14
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%sub = sub i64 %a, %b
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ret i64 %sub
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}
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