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| author | Geoff Berry <gberry@codeaurora.org> | 2018-02-01 18:54:01 +0000 |
|---|---|---|
| committer | Geoff Berry <gberry@codeaurora.org> | 2018-02-01 18:54:01 +0000 |
| commit | 94503c7bc3d70f51ab03c03b2067db3e973efa19 (patch) | |
| tree | 8db2d28d7793aa60b2cde1e630798f3e3c3fd6e7 /llvm/test/CodeGen/Thumb | |
| parent | a95bd9f72414a7d26f21a4ee5a0f40ff1d0c951a (diff) | |
| download | bcm5719-llvm-94503c7bc3d70f51ab03c03b2067db3e973efa19.tar.gz bcm5719-llvm-94503c7bc3d70f51ab03c03b2067db3e973efa19.zip | |
[MachineCopyPropagation] Extend pass to do COPY source forwarding
Summary:
This change extends MachineCopyPropagation to do COPY source forwarding
and adds an additional run of the pass to the default pass pipeline just
after register allocation.
This version of this patch uses the newly added
MachineOperand::isRenamable bit to avoid forwarding registers is such a
way as to violate constraints that aren't captured in the
Machine IR (e.g. ABI or ISA constraints).
This change is a continuation of the work started in D30751.
Reviewers: qcolombet, javed.absar, MatzeB, jonpa, tstellar
Subscribers: tpr, mgorny, mcrosier, nhaehnle, nemanjai, jyknight, hfinkel, arsenm, inouehrs, eraman, sdardis, guyblank, fedor.sergeev, aheejin, dschuff, jfb, myatsina, llvm-commits
Differential Revision: https://reviews.llvm.org/D41835
llvm-svn: 323991
Diffstat (limited to 'llvm/test/CodeGen/Thumb')
| -rw-r--r-- | llvm/test/CodeGen/Thumb/pr35836.ll | 4 | ||||
| -rw-r--r-- | llvm/test/CodeGen/Thumb/thumb-shrink-wrapping.ll | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/llvm/test/CodeGen/Thumb/pr35836.ll b/llvm/test/CodeGen/Thumb/pr35836.ll index 7765e66658a..743c73c799d 100644 --- a/llvm/test/CodeGen/Thumb/pr35836.ll +++ b/llvm/test/CodeGen/Thumb/pr35836.ll @@ -37,13 +37,13 @@ while.body: ; CHECK: adds r3, r0, r1 ; CHECK: push {r5} ; CHECK: pop {r1} -; CHECK: adcs r1, r1 +; CHECK: adcs r1, r5 ; CHECK: ldr r0, [sp, #12] @ 4-byte Reload ; CHECK: ldr r2, [sp, #8] @ 4-byte Reload ; CHECK: adds r2, r0, r2 ; CHECK: push {r5} ; CHECK: pop {r4} -; CHECK: adcs r4, r4 +; CHECK: adcs r4, r5 ; CHECK: adds r0, r2, r5 ; CHECK: push {r3} ; CHECK: pop {r0} diff --git a/llvm/test/CodeGen/Thumb/thumb-shrink-wrapping.ll b/llvm/test/CodeGen/Thumb/thumb-shrink-wrapping.ll index 07d724546e9..471626251d5 100644 --- a/llvm/test/CodeGen/Thumb/thumb-shrink-wrapping.ll +++ b/llvm/test/CodeGen/Thumb/thumb-shrink-wrapping.ll @@ -598,7 +598,7 @@ declare void @abort() #0 define i32 @b_to_bx(i32 %value) { ; CHECK-LABEL: b_to_bx: ; DISABLE: push {r7, lr} -; CHECK: cmp r1, #49 +; CHECK: cmp r0, #49 ; CHECK-NEXT: bgt [[ELSE_LABEL:LBB[0-9_]+]] ; ENABLE: push {r7, lr} |
