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| author | Aditya Nandakumar <aditya_nandakumar@apple.com> | 2019-01-16 00:40:37 +0000 |
|---|---|---|
| committer | Aditya Nandakumar <aditya_nandakumar@apple.com> | 2019-01-16 00:40:37 +0000 |
| commit | 2299ac9fffedab9688896bbc12d3e419a152dc12 (patch) | |
| tree | a3a8f57815401fa1c13e36273ed7a93bcdafd414 /llvm/test/CodeGen/AArch64/GlobalISel/call-translator-cse.ll | |
| parent | fe32bcd513ed4817708fd7dc4114590eb98ff6e6 (diff) | |
[GISel]: Add support for CSEing continuously during GISel passes.
https://reviews.llvm.org/D52803
This patch adds support to continuously CSE instructions during
each of the GISel passes. It consists of a GISelCSEInfo analysis pass
that can be used by the CSEMIRBuilder.
Diffstat (limited to 'llvm/test/CodeGen/AArch64/GlobalISel/call-translator-cse.ll')
| -rw-r--r-- | llvm/test/CodeGen/AArch64/GlobalISel/call-translator-cse.ll | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AArch64/GlobalISel/call-translator-cse.ll b/llvm/test/CodeGen/AArch64/GlobalISel/call-translator-cse.ll new file mode 100644 index 00000000000..64e8fe2cabf --- /dev/null +++ b/llvm/test/CodeGen/AArch64/GlobalISel/call-translator-cse.ll @@ -0,0 +1,34 @@ +; RUN: llc -mtriple=aarch64-linux-gnu -O1 -stop-after=irtranslator -enable-cse-in-irtranslator=1 -global-isel -verify-machineinstrs %s -o - 2>&1 | FileCheck %s + +; CHECK-LABEL: name: test_split_struct +; CHECK: [[ADDR:%[0-9]+]]:_(p0) = COPY $x0 +; CHECK: [[LO:%[0-9]+]]:_(s64) = G_LOAD %0(p0) :: (load 8 from %ir.ptr) +; CHECK: [[CST:%[0-9]+]]:_(s64) = G_CONSTANT i64 8 +; CHECK: [[GEP:%[0-9]+]]:_(p0) = G_GEP [[ADDR]], [[CST]](s64) +; CHECK: [[HI:%[0-9]+]]:_(s64) = G_LOAD [[GEP]](p0) :: (load 8 from %ir.ptr + 8) + +; CHECK: [[IMPDEF:%[0-9]+]]:_(s128) = G_IMPLICIT_DEF +; CHECK: [[INS1:%[0-9]+]]:_(s128) = G_INSERT [[IMPDEF]], [[LO]](s64), 0 +; CHECK: [[INS2:%[0-9]+]]:_(s128) = G_INSERT [[INS1]], [[HI]](s64), 64 +; CHECK: [[EXTLO:%[0-9]+]]:_(s64) = G_EXTRACT [[INS2]](s128), 0 +; CHECK: [[EXTHI:%[0-9]+]]:_(s64) = G_EXTRACT [[INS2]](s128), 64 + +; CHECK: [[SP:%[0-9]+]]:_(p0) = COPY $sp +; CHECK: [[CST2:%[0-9]+]]:_(s64) = G_CONSTANT i64 0 +; CHECK: [[GEP2:%[0-9]+]]:_(p0) = G_GEP [[SP]], [[CST2]](s64) +; CHECK: G_STORE [[EXTLO]](s64), [[GEP2]](p0) :: (store 8 into stack, align 0) +; CHECK: [[SP:%[0-9]+]]:_(p0) = COPY $sp +; CHECK: [[CST3:%[0-9]+]]:_(s64) = COPY [[CST]] +; CHECK: [[GEP3:%[0-9]+]]:_(p0) = G_GEP [[SP]], [[CST3]](s64) +; CHECK: G_STORE [[EXTHI]](s64), [[GEP3]](p0) :: (store 8 into stack + 8, align 0) +define void @test_split_struct([2 x i64]* %ptr) { + %struct = load [2 x i64], [2 x i64]* %ptr + call void @take_split_struct([2 x i64]* null, i64 1, i64 2, i64 3, + i64 4, i64 5, i64 6, + [2 x i64] %struct) + ret void +} + +declare void @take_split_struct([2 x i64]* %ptr, i64, i64, i64, + i64, i64, i64, + [2 x i64] %in) ; |