[llvm] af3abbf - [NFC][PowerPC] Add a new case to test phi-node-elimination pass
Kang Zhang via llvm-commits
llvm-commits at lists.llvm.org
Sun May 31 01:06:15 PDT 2020
Author: Kang Zhang
Date: 2020-05-31T08:05:27Z
New Revision: af3abbf7bd2213003a133c361c212ac6efb1bd2b
URL: https://github.com/llvm/llvm-project/commit/af3abbf7bd2213003a133c361c212ac6efb1bd2b
DIFF: https://github.com/llvm/llvm-project/commit/af3abbf7bd2213003a133c361c212ac6efb1bd2b.diff
LOG: [NFC][PowerPC] Add a new case to test phi-node-elimination pass
Added:
llvm/test/CodeGen/PowerPC/phi-eliminate.mir
Modified:
Removed:
################################################################################
diff --git a/llvm/test/CodeGen/PowerPC/phi-eliminate.mir b/llvm/test/CodeGen/PowerPC/phi-eliminate.mir
new file mode 100644
index 000000000000..8b49b038e6c8
--- /dev/null
+++ b/llvm/test/CodeGen/PowerPC/phi-eliminate.mir
@@ -0,0 +1,295 @@
+# RUN: llc -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr9 %s -o - \
+# RUN: -run-pass=livevars,phi-node-elimination | FileCheck %s
+
+--- |
+ define void @phi_eliminate(i32 %0, i32 %1, i8* %2) {
+ %scevgep3 = getelementptr i8, i8* %2, i64 undef
+ call void @llvm.set.loop.iterations.i64(i64 undef)
+ br label %4
+
+ 4: ; preds = %4, %3
+ %5 = phi i32 [ %8, %4 ], [ %0, %3 ]
+ %6 = phi i8* [ %scevgep3, %3 ], [ %7, %4 ]
+ %7 = getelementptr i8, i8* %6, i64 -1
+ %8 = sdiv i32 %5, %1
+ %9 = mul nsw i32 %8, %1
+ %10 = sub nsw i32 %5, %9
+ %11 = icmp ult i32 %10, 10
+ %12 = trunc i32 %10 to i8
+ %13 = select i1 %11, i8 48, i8 55
+ %14 = add i8 %13, %12
+ store i8 %14, i8* %7, align 1
+ %15 = call i1 @llvm.loop.decrement.i64(i64 1)
+ br i1 %15, label %4, label %16
+
+ 16: ; preds = %4
+ ret void
+ }
+
+ declare void @llvm.set.loop.iterations.i64(i64)
+
+ declare i1 @llvm.loop.decrement.i64(i64)
+
+ declare void @llvm.stackprotector(i8*, i8**)
+...
+---
+name: phi_eliminate
+alignment: 16
+exposesReturnsTwice: false
+legalized: false
+regBankSelected: false
+selected: false
+failedISel: false
+tracksRegLiveness: true
+hasWinCFI: false
+registers:
+ - { id: 0, class: g8rc_and_g8rc_nox0, preferred-register: '' }
+ - { id: 1, class: gprc, preferred-register: '' }
+ - { id: 2, class: g8rc_and_g8rc_nox0, preferred-register: '' }
+ - { id: 3, class: g8rc, preferred-register: '' }
+ - { id: 4, class: gprc, preferred-register: '' }
+ - { id: 5, class: g8rc, preferred-register: '' }
+ - { id: 6, class: g8rc, preferred-register: '' }
+ - { id: 7, class: g8rc, preferred-register: '' }
+ - { id: 8, class: gprc, preferred-register: '' }
+ - { id: 9, class: gprc, preferred-register: '' }
+ - { id: 10, class: g8rc, preferred-register: '' }
+ - { id: 11, class: gprc, preferred-register: '' }
+ - { id: 12, class: gprc, preferred-register: '' }
+ - { id: 13, class: crrc, preferred-register: '' }
+ - { id: 14, class: gprc_and_gprc_nor0, preferred-register: '' }
+ - { id: 15, class: gprc_and_gprc_nor0, preferred-register: '' }
+ - { id: 16, class: gprc, preferred-register: '' }
+ - { id: 17, class: gprc, preferred-register: '' }
+ - { id: 18, class: g8rc_and_g8rc_nox0, preferred-register: '' }
+ - { id: 19, class: gprc, preferred-register: '' }
+ - { id: 20, class: gprc, preferred-register: '' }
+ - { id: 21, class: gprc, preferred-register: '' }
+ - { id: 22, class: crrc, preferred-register: '' }
+ - { id: 23, class: gprc, preferred-register: '' }
+ - { id: 24, class: gprc, preferred-register: '' }
+ - { id: 25, class: g8rc_and_g8rc_nox0, preferred-register: '' }
+ - { id: 26, class: gprc, preferred-register: '' }
+ - { id: 27, class: g8rc_and_g8rc_nox0, preferred-register: '' }
+ - { id: 28, class: gprc, preferred-register: '' }
+ - { id: 29, class: gprc, preferred-register: '' }
+ - { id: 30, class: gprc, preferred-register: '' }
+ - { id: 31, class: crrc, preferred-register: '' }
+ - { id: 32, class: gprc, preferred-register: '' }
+ - { id: 33, class: gprc, preferred-register: '' }
+ - { id: 34, class: g8rc_and_g8rc_nox0, preferred-register: '' }
+ - { id: 35, class: gprc, preferred-register: '' }
+ - { id: 36, class: gprc, preferred-register: '' }
+ - { id: 37, class: gprc, preferred-register: '' }
+ - { id: 38, class: g8rc_and_g8rc_nox0, preferred-register: '' }
+ - { id: 39, class: g8rc, preferred-register: '' }
+ - { id: 40, class: gprc, preferred-register: '' }
+ - { id: 41, class: gprc, preferred-register: '' }
+ - { id: 42, class: g8rc_and_g8rc_nox0, preferred-register: '' }
+ - { id: 43, class: gprc, preferred-register: '' }
+ - { id: 44, class: g8rc_and_g8rc_nox0, preferred-register: '' }
+ - { id: 45, class: gprc, preferred-register: '' }
+ - { id: 46, class: gprc, preferred-register: '' }
+ - { id: 47, class: crrc, preferred-register: '' }
+ - { id: 48, class: gprc, preferred-register: '' }
+ - { id: 49, class: gprc, preferred-register: '' }
+ - { id: 50, class: g8rc_and_g8rc_nox0, preferred-register: '' }
+ - { id: 51, class: g8rc, preferred-register: '' }
+ - { id: 52, class: gprc, preferred-register: '' }
+ - { id: 53, class: gprc, preferred-register: '' }
+ - { id: 54, class: g8rc_and_g8rc_nox0, preferred-register: '' }
+ - { id: 55, class: gprc, preferred-register: '' }
+ - { id: 56, class: gprc, preferred-register: '' }
+liveins:
+ - { reg: '$x3', virtual-reg: '%5' }
+ - { reg: '$x4', virtual-reg: '%6' }
+frameInfo:
+ isFrameAddressTaken: false
+ isReturnAddressTaken: false
+ hasStackMap: false
+ hasPatchPoint: false
+ stackSize: 0
+ offsetAdjustment: 0
+ maxAlignment: 1
+ adjustsStack: false
+ hasCalls: false
+ stackProtector: ''
+ maxCallFrameSize: 4294967295
+ cvBytesOfCalleeSavedRegisters: 0
+ hasOpaqueSPAdjustment: false
+ hasVAStart: false
+ hasMustTailInVarArgFunc: false
+ localFrameSize: 0
+ savePoint: ''
+ restorePoint: ''
+fixedStack: []
+stack: []
+callSites: []
+constants: []
+machineFunctionInfo: {}
+body: |
+ ; CHECK-LABEL: name: phi_eliminate
+ ; CHECK: bb.0 (%ir-block.3):
+ ; CHECK: successors: %bb.1(0x80000000)
+ ; CHECK: liveins: $x3, $x4
+ ; CHECK: %6:g8rc = COPY killed $x4
+ ; CHECK: %5:g8rc = COPY killed $x3
+ ; CHECK: %9:gprc = COPY killed %6.sub_32
+ ; CHECK: %8:gprc = COPY killed %5.sub_32
+ ; CHECK: MTCTR8loop undef %10:g8rc, implicit-def dead $ctr8
+ ; CHECK: %14:gprc_and_gprc_nor0 = LI 55
+ ; CHECK: %15:gprc_and_gprc_nor0 = LI 48
+
+ ; CHECK: bb.1 (%ir-block.4):
+ ; CHECK: successors: %bb.2(0x40000000), %bb.7(0x40000000)
+ ; CHECK: %19:gprc = DIVW %8, %9
+ ; CHECK: BDNZ8 %bb.2, implicit-def $ctr8, implicit $ctr8
+
+ ; CHECK: bb.7:
+ ; CHECK: successors: %bb.5(0x80000000)
+ ; CHECK: %61:gprc = COPY killed %8
+ ; CHECK: %62:g8rc_and_g8rc_nox0 = IMPLICIT_DEF
+ ; CHECK: %63:gprc = COPY killed %19
+ ; CHECK: B %bb.5
+
+ ; CHECK: bb.2 (%ir-block.4):
+ ; CHECK: successors: %bb.3(0x40000000), %bb.4(0x40000000)
+ ; CHECK: %20:gprc = nsw MULLW %19, %9
+ ; CHECK: %21:gprc = SUBF killed %20, killed %8
+ ; CHECK: %22:crrc = CMPLWI %21, 10
+ ; CHECK: %23:gprc = ISEL %15, %14, killed %22.sub_lt
+ ; CHECK: %24:gprc = ADD4 killed %23, killed %21
+ ; CHECK: %25:g8rc_and_g8rc_nox0 = STBU killed %24, -1, undef %0:g8rc_and_g8rc_nox0 :: (store 1 into %ir.7)
+ ; CHECK: %26:gprc = DIVW %19, %9
+ ; CHECK: %57:gprc = COPY killed %26
+ ; CHECK: %58:gprc = COPY %19
+ ; CHECK: %59:g8rc_and_g8rc_nox0 = COPY killed %25
+ ; CHECK: %60:gprc = COPY killed %19
+ ; CHECK: BDZ8 %bb.4, implicit-def $ctr8, implicit $ctr8
+ ; CHECK: B %bb.3
+
+ ; CHECK: bb.3 (%ir-block.4):
+ ; CHECK: successors: %bb.3(0x7c000000), %bb.4(0x04000000)
+ ; CHECK: %38:g8rc_and_g8rc_nox0 = COPY killed %59
+ ; CHECK: %37:gprc = COPY killed %57
+ ; CHECK: %36:gprc = COPY killed %58
+ ; CHECK: %35:gprc = COPY %57
+ ; CHECK: %27:g8rc_and_g8rc_nox0 = COPY killed %38
+ ; CHECK: %56:gprc = COPY %35
+ ; CHECK: %28:gprc = DIVW %56, %9
+ ; CHECK: %29:gprc = nsw MULLW killed %37, %9
+ ; CHECK: %30:gprc = SUBF killed %29, killed %36
+ ; CHECK: %31:crrc = CMPLWI %30, 10
+ ; CHECK: %32:gprc = ISEL %15, %14, killed %31.sub_lt
+ ; CHECK: %33:gprc = ADD4 killed %32, killed %30
+ ; CHECK: %34:g8rc_and_g8rc_nox0 = STBU killed %33, -1, killed %27 :: (store unknown-size into %ir.7, align 1)
+ ; CHECK: %57:gprc = COPY killed %28
+ ; CHECK: %58:gprc = COPY killed %35
+ ; CHECK: %59:g8rc_and_g8rc_nox0 = COPY killed %34
+ ; CHECK: %60:gprc = COPY killed %56
+ ; CHECK: BDNZ8 %bb.3, implicit-def $ctr8, implicit $ctr8
+ ; CHECK: B %bb.4
+
+ ; CHECK: bb.4:
+ ; CHECK: successors: %bb.5(0x80000000)
+ ; CHECK: %44:g8rc_and_g8rc_nox0 = COPY killed %59
+ ; CHECK: %43:gprc = COPY killed %57
+ ; CHECK: %41:gprc = COPY killed %60
+ ; CHECK: %39:g8rc = COPY killed %44
+ ; CHECK: %61:gprc = COPY killed %41
+ ; CHECK: %62:g8rc_and_g8rc_nox0 = COPY killed %39
+ ; CHECK: %63:gprc = COPY killed %43
+
+ ; CHECK: bb.5:
+ ; CHECK: successors: %bb.6(0x80000000)
+ ; CHECK: %55:gprc = COPY killed %63
+ ; CHECK: %54:g8rc_and_g8rc_nox0 = COPY killed %62
+ ; CHECK: %53:gprc = COPY killed %61
+ ; CHECK: %45:gprc = nsw MULLW killed %55, killed %9
+ ; CHECK: %46:gprc = SUBF killed %45, killed %53
+ ; CHECK: %47:crrc = CMPLWI %46, 10
+ ; CHECK: %48:gprc = ISEL killed %15, killed %14, killed %47.sub_lt
+ ; CHECK: %49:gprc = ADD4 killed %48, killed %46
+ ; CHECK: dead %50:g8rc_and_g8rc_nox0 = STBU killed %49, -1, killed %54 :: (store unknown-size into %ir.7, align 1)
+ ; CHECK: B %bb.6
+
+ ; CHECK: bb.6 (%ir-block.16):
+ ; CHECK: BLR8 implicit $lr8, implicit $rm
+
+ bb.0 (%ir-block.3):
+ successors: %bb.1(0x80000000)
+ liveins: $x3, $x4
+
+ %6:g8rc = COPY killed $x4
+ %5:g8rc = COPY killed $x3
+ %9:gprc = COPY killed %6.sub_32
+ %8:gprc = COPY killed %5.sub_32
+ MTCTR8loop undef %10:g8rc, implicit-def dead $ctr8
+ %14:gprc_and_gprc_nor0 = LI 55
+ %15:gprc_and_gprc_nor0 = LI 48
+
+ bb.1 (%ir-block.4):
+ successors: %bb.2(0x40000000), %bb.5(0x40000000)
+
+ %19:gprc = DIVW %8, %9
+ BDZ8 %bb.5, implicit-def $ctr8, implicit $ctr8
+ B %bb.2
+
+ bb.2 (%ir-block.4):
+ successors: %bb.3(0x40000000), %bb.4(0x40000000)
+
+ %20:gprc = nsw MULLW %19, %9
+ %21:gprc = SUBF killed %20, killed %8
+ %22:crrc = CMPLWI %21, 10
+ %23:gprc = ISEL %15, %14, killed %22.sub_lt
+ %24:gprc = ADD4 killed %23, killed %21
+ %25:g8rc_and_g8rc_nox0 = STBU killed %24, -1, undef %0:g8rc_and_g8rc_nox0 :: (store 1 into %ir.7)
+ %26:gprc = DIVW %19, %9
+ BDZ8 %bb.4, implicit-def $ctr8, implicit $ctr8
+ B %bb.3
+
+ bb.3 (%ir-block.4):
+ successors: %bb.3(0x7c000000), %bb.4(0x04000000)
+
+ %35:gprc = PHI %26, %bb.2, %28, %bb.3
+ %36:gprc = PHI %19, %bb.2, %35, %bb.3
+ %37:gprc = PHI %26, %bb.2, %28, %bb.3
+ %38:g8rc_and_g8rc_nox0 = PHI %25, %bb.2, %34, %bb.3
+ %27:g8rc_and_g8rc_nox0 = COPY killed %38
+ %56:gprc = COPY %35
+ %28:gprc = DIVW %56, %9
+ %29:gprc = nsw MULLW killed %37, %9
+ %30:gprc = SUBF killed %29, killed %36
+ %31:crrc = CMPLWI %30, 10
+ %32:gprc = ISEL %15, %14, killed %31.sub_lt
+ %33:gprc = ADD4 killed %32, killed %30
+ %34:g8rc_and_g8rc_nox0 = STBU killed %33, -1, killed %27 :: (store unknown-size into %ir.7, align 1)
+ BDNZ8 %bb.3, implicit-def $ctr8, implicit $ctr8
+ B %bb.4
+
+ bb.4:
+ successors: %bb.5(0x80000000)
+
+ %41:gprc = PHI %19, %bb.2, %56, %bb.3
+ %43:gprc = PHI %26, %bb.2, %28, %bb.3
+ %44:g8rc_and_g8rc_nox0 = PHI %25, %bb.2, %34, %bb.3
+ %39:g8rc = COPY killed %44
+
+ bb.5:
+ successors: %bb.6(0x80000000)
+
+ %53:gprc = PHI %8, %bb.1, %41, %bb.4
+ %54:g8rc_and_g8rc_nox0 = PHI undef %0:g8rc_and_g8rc_nox0, %bb.1, %39, %bb.4
+ %55:gprc = PHI %19, %bb.1, %43, %bb.4
+ %45:gprc = nsw MULLW killed %55, killed %9
+ %46:gprc = SUBF killed %45, killed %53
+ %47:crrc = CMPLWI %46, 10
+ %48:gprc = ISEL killed %15, killed %14, killed %47.sub_lt
+ %49:gprc = ADD4 killed %48, killed %46
+ dead %50:g8rc_and_g8rc_nox0 = STBU killed %49, -1, killed %54 :: (store unknown-size into %ir.7, align 1)
+ B %bb.6
+
+ bb.6 (%ir-block.16):
+ BLR8 implicit $lr8, implicit $rm
+
+...
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