a1710eb3cd
The LIT test cases were migrated with the script provided by Nikita Popov. No manual changes were made. Committed without review since no functional changes, after consultation with uweigand.
39 lines
1.2 KiB
LLVM
39 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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;
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; Test that DAGCombiner does not produce an addcarry node if the carry
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; producer is not legal. This can happen e.g. with an uaddo with a type
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; that is not legal.
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;
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; RUN: llc -mtriple=s390x-linux-gnu -mcpu=z13 < %s | FileCheck %s
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define void @fun(i16 %arg0, ptr %src, ptr %dst) {
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; CHECK-LABEL: fun:
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; CHECK: # %bb.0: # %bb
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; CHECK-NEXT: llhr %r0, %r2
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; CHECK-NEXT: llh %r2, 0(%r3)
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; CHECK-NEXT: chi %r0, 9616
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; CHECK-NEXT: lhi %r1, 0
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; CHECK-NEXT: lochil %r1, 1
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; CHECK-NEXT: afi %r2, 65535
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; CHECK-NEXT: llhr %r3, %r2
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; CHECK-NEXT: lhi %r0, 0
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; CHECK-NEXT: cr %r3, %r2
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; CHECK-NEXT: lochilh %r0, 1
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; CHECK-NEXT: ar %r0, %r1
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; CHECK-NEXT: st %r0, 0(%r4)
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; CHECK-NEXT: br %r14
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bb:
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%tmp = icmp ult i16 %arg0, 9616
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%tmp1 = zext i1 %tmp to i32
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%tmp2 = load i16, ptr %src
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%0 = call { i16, i1 } @llvm.uadd.with.overflow.i16(i16 %tmp2, i16 -1)
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%math = extractvalue { i16, i1 } %0, 0
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%ov = extractvalue { i16, i1 } %0, 1
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%tmp5 = zext i1 %ov to i32
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%tmp6 = add nuw nsw i32 %tmp5, %tmp1
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store i32 %tmp6, ptr %dst
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ret void
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}
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declare { i16, i1 } @llvm.uadd.with.overflow.i16(i16, i16) #1
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