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author | Dimitry Andric <dim@FreeBSD.org> | 2015-05-27 18:44:32 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2015-05-27 18:44:32 +0000 |
commit | 5a5ac124e1efaf208671f01c46edb15f29ed2a0b (patch) | |
tree | a6140557876943cdd800ee997c9317283394b22c /test/CodeGen/X86/licm-regpressure.ll | |
parent | f03b5bed27d0d2eafd68562ce14f8b5e3f1f0801 (diff) | |
download | src-test-5a5ac124e1efaf208671f01c46edb15f29ed2a0b.tar.gz src-test-5a5ac124e1efaf208671f01c46edb15f29ed2a0b.zip |
Notes
Diffstat (limited to 'test/CodeGen/X86/licm-regpressure.ll')
-rw-r--r-- | test/CodeGen/X86/licm-regpressure.ll | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/test/CodeGen/X86/licm-regpressure.ll b/test/CodeGen/X86/licm-regpressure.ll new file mode 100644 index 0000000000000..0ab655419c88c --- /dev/null +++ b/test/CodeGen/X86/licm-regpressure.ll @@ -0,0 +1,39 @@ +; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s +; This tests currently fails as MachineLICM does not compute register pressure +; correctly. More details: llvm.org/PR23143 +; XFAIL: * + +; MachineLICM should take register pressure into account. +; CHECK-NOT: Spill + +%struct.A = type { i32, i32, i32, i32, i32, i32, i32 } + +define void @test(i1 %b, %struct.A* %a) nounwind { +entry: + br label %loop-header + +loop-header: + br label %loop-body + +loop-body: + %0 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 0 + %1 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 1 + %2 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 2 + %3 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 3 + %4 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 4 + %5 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 5 + %6 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 6 + call void @assign(i32* %0) + call void @assign(i32* %1) + call void @assign(i32* %2) + call void @assign(i32* %3) + call void @assign(i32* %4) + call void @assign(i32* %5) + call void @assign(i32* %6) + br i1 %b, label %loop-body, label %loop-exit + +loop-exit: + ret void +} + +declare void @assign(i32*) |