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llvm-mirror/test/CodeGen/PowerPC/setcr_bc3.mir

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[PowerPC] Remove SeenUse check when optimizing conditional branch in PPCPreEmitPeephole pass. PPCPreEmitPeephole will convert a BC to B when the conditional branch is based on a constant CR by CRSET or CRUNSET. This is added in https://reviews.llvm.org/rL343100. When the conditional branch is known to be always taken, all branches will be removed and a new unconditional branch will be inserted. However, when SeenUse is false the original patch will not remove the branches, but still insert the new unconditional branch, update the successors and create inconsistent IR. Compiling the synthetic testcase included can show the problem we run into. The patch simply removes the SeenUse condition when adding branches into InstrsToErase set. Differential Revision: https://reviews.llvm.org/D56041 llvm-svn: 350223
2019-01-02 18:07:23 +01:00
# RUN: llc -verify-machineinstrs -start-before=ppc-pre-emit-peephole %s -o - | FileCheck %s
--- |
target datalayout = "e-m:e-i64:64-n32:64"
target triple = "powerpc64le-unknown-linux-gnu"
declare signext i32 @callee(i32 signext)
define signext i32 @func(i32 signext %v) {
ret i32 0
}
...
---
name: func
[Alignment] Use llvm::Align in MachineFunction and TargetLowering - fixes mir parsing Summary: This catches malformed mir files which specify alignment as log2 instead of pow2. See https://reviews.llvm.org/D65945 for reference, This is patch is part of a series to introduce an Alignment type. See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html See this patch for the introduction of the type: https://reviews.llvm.org/D64790 Reviewers: courbet Subscribers: MatzeB, qcolombet, dschuff, arsenm, sdardis, nemanjai, jvesely, nhaehnle, hiraditya, kbarton, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, jsji, Petar.Avramovic, asbirlea, s.egerton, pzheng, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D67433 llvm-svn: 371608
2019-09-11 13:16:48 +02:00
alignment: 16
[PowerPC] Remove SeenUse check when optimizing conditional branch in PPCPreEmitPeephole pass. PPCPreEmitPeephole will convert a BC to B when the conditional branch is based on a constant CR by CRSET or CRUNSET. This is added in https://reviews.llvm.org/rL343100. When the conditional branch is known to be always taken, all branches will be removed and a new unconditional branch will be inserted. However, when SeenUse is false the original patch will not remove the branches, but still insert the new unconditional branch, update the successors and create inconsistent IR. Compiling the synthetic testcase included can show the problem we run into. The patch simply removes the SeenUse condition when adding branches into InstrsToErase set. Differential Revision: https://reviews.llvm.org/D56041 llvm-svn: 350223
2019-01-02 18:07:23 +01:00
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
registers:
liveins:
- { reg: '$x3', virtual-reg: '' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 48
offsetAdjustment: 0
maxAlignment: 0
adjustsStack: true
hasCalls: true
stackProtector: ''
maxCallFrameSize: 32
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack:
Describe stack-id as an enum This patch changes MIR stack-id from an integer to an enum, and adds printing/parsing support for this in MIR files. The default stack-id '0' is now renamed to 'default'. This should make MIR tests that have stack objects with different stack-ids more descriptive. It also clarifies code operating on StackID. Reviewers: arsenm, thegameg, qcolombet Reviewed By: arsenm Differential Revision: https://reviews.llvm.org/D60137 llvm-svn: 363533
2019-06-17 11:13:29 +02:00
- { id: 0, type: spill-slot, offset: -16, size: 8, alignment: 16, stack-id: default,
[PowerPC] Remove SeenUse check when optimizing conditional branch in PPCPreEmitPeephole pass. PPCPreEmitPeephole will convert a BC to B when the conditional branch is based on a constant CR by CRSET or CRUNSET. This is added in https://reviews.llvm.org/rL343100. When the conditional branch is known to be always taken, all branches will be removed and a new unconditional branch will be inserted. However, when SeenUse is false the original patch will not remove the branches, but still insert the new unconditional branch, update the successors and create inconsistent IR. Compiling the synthetic testcase included can show the problem we run into. The patch simply removes the SeenUse condition when adding branches into InstrsToErase set. Differential Revision: https://reviews.llvm.org/D56041 llvm-svn: 350223
2019-01-02 18:07:23 +01:00
callee-saved-register: '$x30', callee-saved-restored: true, debug-info-variable: '',
debug-info-expression: '', debug-info-location: '' }
stack:
constants:
body: |
bb.0:
successors: %bb.2(0x30000000), %bb.1(0x50000000)
liveins: $x3, $x30
; bc should be converted into b
; CHECK-LABEL: func
; CHECK: # %bb.1
; CHECK: creqv
; CHECK-NOT: bc
; CHECK: b .LBB0_3
; CHECK: .LBB0_2
$x0 = MFLR8 implicit $lr8
STD killed $x0, 16, $x1
$x1 = STDU $x1, -48, $x1
STD killed $x30, 32, $x1 :: (store 8 into %fixed-stack.0, align 16)
$x30 = OR8 $x3, $x3
[NFC][PowerPC] Cleanup 64-bit and Darwin CalleeSavedRegs Summary: - Remove the no longer used Darwin CalleeSavedRegs - Combine the SVR464 callee saved regs and AIX64 since the two are (and should be) identical into PPC64 - Update tests for 64-bit CSR change Reviewers: sfertile, ZarkoCA, cebowleratibm, jasonliu, #powerpc Reviewed By: sfertile Subscribers: wuzish, nemanjai, hiraditya, kbarton, shchenz, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D77235
2020-04-07 15:57:56 +02:00
BL8_NOP @callee, csr_ppc64_altivec, implicit-def dead $lr8, implicit $rm, implicit killed $x3, implicit $x2, implicit-def $r1, implicit-def $x3
[PowerPC] Remove SeenUse check when optimizing conditional branch in PPCPreEmitPeephole pass. PPCPreEmitPeephole will convert a BC to B when the conditional branch is based on a constant CR by CRSET or CRUNSET. This is added in https://reviews.llvm.org/rL343100. When the conditional branch is known to be always taken, all branches will be removed and a new unconditional branch will be inserted. However, when SeenUse is false the original patch will not remove the branches, but still insert the new unconditional branch, update the successors and create inconsistent IR. Compiling the synthetic testcase included can show the problem we run into. The patch simply removes the SeenUse condition when adding branches into InstrsToErase set. Differential Revision: https://reviews.llvm.org/D56041 llvm-svn: 350223
2019-01-02 18:07:23 +01:00
renamable $cr0 = CMPLWI renamable $r3, 0
BCC 76, killed renamable $cr0, %bb.2
bb.1:
successors: %bb.5(0x40000000), %bb.2(0x40000000)
liveins: $x3
renamable $x3 = EXTSW_32_64 killed renamable $r3, implicit $x3
[NFC][PowerPC] Cleanup 64-bit and Darwin CalleeSavedRegs Summary: - Remove the no longer used Darwin CalleeSavedRegs - Combine the SVR464 callee saved regs and AIX64 since the two are (and should be) identical into PPC64 - Update tests for 64-bit CSR change Reviewers: sfertile, ZarkoCA, cebowleratibm, jasonliu, #powerpc Reviewed By: sfertile Subscribers: wuzish, nemanjai, hiraditya, kbarton, shchenz, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D77235
2020-04-07 15:57:56 +02:00
BL8_NOP @callee, csr_ppc64_altivec, implicit-def dead $lr8, implicit $rm, implicit killed $x3, implicit $x2, implicit-def $r1, implicit-def $x3
[PowerPC] Remove SeenUse check when optimizing conditional branch in PPCPreEmitPeephole pass. PPCPreEmitPeephole will convert a BC to B when the conditional branch is based on a constant CR by CRSET or CRUNSET. This is added in https://reviews.llvm.org/rL343100. When the conditional branch is known to be always taken, all branches will be removed and a new unconditional branch will be inserted. However, when SeenUse is false the original patch will not remove the branches, but still insert the new unconditional branch, update the successors and create inconsistent IR. Compiling the synthetic testcase included can show the problem we run into. The patch simply removes the SeenUse condition when adding branches into InstrsToErase set. Differential Revision: https://reviews.llvm.org/D56041 llvm-svn: 350223
2019-01-02 18:07:23 +01:00
renamable $cr2un = CRSET
$cr2gt = CROR $cr2un, $cr2un
$x30 = OR8 killed $x3, $x3
BC killed renamable $cr2un, %bb.5
B %bb.2
bb.4:
successors: %bb.5(0x80000000)
liveins: $x30
$x3 = LI8 0
[NFC][PowerPC] Cleanup 64-bit and Darwin CalleeSavedRegs Summary: - Remove the no longer used Darwin CalleeSavedRegs - Combine the SVR464 callee saved regs and AIX64 since the two are (and should be) identical into PPC64 - Update tests for 64-bit CSR change Reviewers: sfertile, ZarkoCA, cebowleratibm, jasonliu, #powerpc Reviewed By: sfertile Subscribers: wuzish, nemanjai, hiraditya, kbarton, shchenz, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D77235
2020-04-07 15:57:56 +02:00
BL8_NOP @callee, csr_ppc64_altivec, implicit-def dead $lr8, implicit $rm, implicit killed $x3, implicit $x2, implicit-def $r1, implicit-def dead $x3
[PowerPC] Remove SeenUse check when optimizing conditional branch in PPCPreEmitPeephole pass. PPCPreEmitPeephole will convert a BC to B when the conditional branch is based on a constant CR by CRSET or CRUNSET. This is added in https://reviews.llvm.org/rL343100. When the conditional branch is known to be always taken, all branches will be removed and a new unconditional branch will be inserted. However, when SeenUse is false the original patch will not remove the branches, but still insert the new unconditional branch, update the successors and create inconsistent IR. Compiling the synthetic testcase included can show the problem we run into. The patch simply removes the SeenUse condition when adding branches into InstrsToErase set. Differential Revision: https://reviews.llvm.org/D56041 llvm-svn: 350223
2019-01-02 18:07:23 +01:00
bb.5:
[NFC][PowerPC] Fix the liveins for 3 mir test cases
2020-04-24 10:03:02 +02:00
liveins: $x30
[PowerPC] Remove SeenUse check when optimizing conditional branch in PPCPreEmitPeephole pass. PPCPreEmitPeephole will convert a BC to B when the conditional branch is based on a constant CR by CRSET or CRUNSET. This is added in https://reviews.llvm.org/rL343100. When the conditional branch is known to be always taken, all branches will be removed and a new unconditional branch will be inserted. However, when SeenUse is false the original patch will not remove the branches, but still insert the new unconditional branch, update the successors and create inconsistent IR. Compiling the synthetic testcase included can show the problem we run into. The patch simply removes the SeenUse condition when adding branches into InstrsToErase set. Differential Revision: https://reviews.llvm.org/D56041 llvm-svn: 350223
2019-01-02 18:07:23 +01:00
renamable $x3 = EXTSW_32_64 killed renamable $r30, implicit $x30
$x30 = LD 32, $x1 :: (load 8 from %fixed-stack.0, align 16)
$x1 = ADDI8 $x1, 48
$x0 = LD 16, $x1
MTLR8 killed $x0, implicit-def $lr8
BLR8 implicit $lr8, implicit $rm, implicit killed $x3
bb.2:
successors: %bb.5(0x40000000), %bb.4(0x40000000)
liveins: $x30
renamable $cr0 = CMPWI renamable $r30, -1
BCn killed renamable $cr0gt, %bb.4
B %bb.5
...
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