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authorDimitry Andric <dim@FreeBSD.org>2015-06-21 13:59:01 +0000
committerDimitry Andric <dim@FreeBSD.org>2015-06-21 13:59:01 +0000
commit3a0822f094b578157263e04114075ad7df81db41 (patch)
treebc48361fe2cd1ca5f93ac01b38b183774468fc79 /test/CodeGen/AMDGPU/subreg-eliminate-dead.ll
parent85d8b2bbe386bcfe669575d05b61482d7be07e5d (diff)
downloadsrc-3a0822f094b578157263e04114075ad7df81db41.tar.gz
src-3a0822f094b578157263e04114075ad7df81db41.zip
Vendor import of llvm trunk r240225:vendor/llvm/llvm-trunk-r240225
Notes
Notes: svn path=/vendor/llvm/dist/; revision=284677 svn path=/vendor/llvm/llvm-trunk-r240225/; revision=284678; tag=vendor/llvm/llvm-trunk-r240225
Diffstat (limited to 'test/CodeGen/AMDGPU/subreg-eliminate-dead.ll')
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diff --git a/test/CodeGen/AMDGPU/subreg-eliminate-dead.ll b/test/CodeGen/AMDGPU/subreg-eliminate-dead.ll
new file mode 100644
index 000000000000..8bd995a8ecbb
--- /dev/null
+++ b/test/CodeGen/AMDGPU/subreg-eliminate-dead.ll
@@ -0,0 +1,19 @@
+; RUN: llc -mtriple=amdgcn-- -verify-machineinstrs -o - %s | FileCheck %s
+; LiveRangeEdit::eliminateDeadDef did not update LiveInterval sub ranges
+; properly.
+
+; Just make sure this test doesn't crash.
+; CHECK-LABEL: foobar:
+; CHECK: s_endpgm
+define void @foobar() {
+ %v0 = icmp eq <4 x i32> undef, <i32 0, i32 1, i32 2, i32 3>
+ %v3 = sext <4 x i1> %v0 to <4 x i32>
+ %v4 = extractelement <4 x i32> %v3, i32 1
+ %v5 = icmp ne i32 %v4, 0
+ %v6 = select i1 %v5, i32 undef, i32 0
+ %v15 = insertelement <2 x i32> undef, i32 %v6, i32 1
+ store <2 x i32> %v15, <2 x i32> addrspace(1)* undef, align 8
+ ret void
+}
+
+declare double @llvm.fma.f64(double, double, double)