forked from OSchip/llvm-project
740 lines
25 KiB
YAML
740 lines
25 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -o - %s -mtriple=x86_64-- -run-pass peephole-opt | FileCheck %s
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---
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name: opt_zerocmp_0
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_zerocmp_0
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; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $esi
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; CHECK-NEXT: [[XOR32ri:%[0-9]+]]:gr32 = XOR32ri [[COPY]], i32 1234, implicit-def $eflags
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; CHECK-NEXT: $al = SETCCr 5, implicit $eflags
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%0:gr32 = COPY $esi
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%1:gr32 = XOR32ri %0, i32 1234, implicit-def $eflags
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; TEST should be removed.
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TEST32rr %1, %1, implicit-def $eflags
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$al = SETCCr 5, implicit $eflags
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...
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---
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name: opt_zerocmp_1
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_zerocmp_1
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; CHECK: [[COPY:%[0-9]+]]:gr64 = COPY $rsi
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; CHECK-NEXT: [[DEC64r:%[0-9]+]]:gr64 = DEC64r [[COPY]], implicit-def $eflags
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; CHECK-NEXT: [[LEA64r:%[0-9]+]]:gr64 = LEA64r [[DEC64r]], 5, $noreg, 12, $noreg
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; CHECK-NEXT: $al = SETCCr 4, implicit $eflags
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%0:gr64 = COPY $rsi
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%1:gr64 = DEC64r %0, implicit-def $eflags
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; CMP should be removed.
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CMP64ri8 %1, 0, implicit-def $eflags
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%2:gr64 = LEA64r %1, 5, $noreg, 12, $noreg
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$al = SETCCr 4, implicit $eflags
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...
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---
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name: opt_multiple_blocks
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tracksRegLiveness: true
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body: |
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; CHECK-LABEL: name: opt_multiple_blocks
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; CHECK: bb.0:
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; CHECK-NEXT: successors: %bb.1(0x80000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64 = COPY undef $rsi
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; CHECK-NEXT: [[INC64r:%[0-9]+]]:gr64 = INC64r [[COPY]], implicit-def $eflags
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; CHECK-NEXT: PUSH64r undef $rcx, implicit-def $rsp, implicit $rsp
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; CHECK-NEXT: $rcx = POP64r implicit-def $rsp, implicit $rsp
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; CHECK-NEXT: JMP_1 %bb.1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.1:
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; CHECK-NEXT: liveins: $eflags
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[LEA64r:%[0-9]+]]:gr64 = LEA64r [[INC64r]], 5, $noreg, 12, $noreg
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; CHECK-NEXT: $al = SETCCr 4, implicit $eflags
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bb.0:
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%0:gr64 = COPY undef $rsi
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%1:gr64 = INC64r %0, implicit-def $eflags
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PUSH64r undef $rcx, implicit-def $rsp, implicit $rsp
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$rcx = POP64r implicit-def $rsp, implicit $rsp
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JMP_1 %bb.1
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bb.1:
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; TEST should be removed.
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TEST64rr %1, %1, implicit-def $eflags
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%2:gr64 = LEA64r %1, 5, $noreg, 12, $noreg
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$al = SETCCr 4, implicit $eflags
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...
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---
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name: opt_multiple_blocks_noopt_0
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body: |
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; CHECK-LABEL: name: opt_multiple_blocks_noopt_0
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; CHECK: bb.0:
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; CHECK-NEXT: successors: %bb.1(0x80000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64 = COPY undef $rsi
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; CHECK-NEXT: [[INC64r:%[0-9]+]]:gr64 = INC64r [[COPY]], implicit-def $eflags
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; CHECK-NEXT: JMP_1 %bb.1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.1:
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; CHECK-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: TEST64rr [[INC64r]], [[INC64r]], implicit-def $eflags
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; CHECK-NEXT: [[LEA64r:%[0-9]+]]:gr64 = LEA64r [[INC64r]], 5, $noreg, 12, $noreg
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; CHECK-NEXT: $al = SETCCr 4, implicit $eflags
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; CHECK-NEXT: JCC_1 %bb.1, 2, implicit $eflags
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.2:
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bb.0:
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%0:gr64 = COPY undef $rsi
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%1:gr64 = INC64r %0, implicit-def $eflags
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JMP_1 %bb.1
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bb.1:
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; The TEST64rr should not be removed, since there are multiple preds.
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TEST64rr %1, %1, implicit-def $eflags
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%2:gr64 = LEA64r %1, 5, $noreg, 12, $noreg
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$al = SETCCr 4, implicit $eflags
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JCC_1 %bb.1, 2, implicit $eflags
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bb.2:
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...
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---
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name: opt_multiple_blocks_noopt_1
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body: |
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; CHECK-LABEL: name: opt_multiple_blocks_noopt_1
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; CHECK: bb.0:
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; CHECK-NEXT: successors: %bb.1(0x80000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: JMP_1 %bb.1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.1:
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; CHECK-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64 = COPY undef $rsi
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; CHECK-NEXT: TEST64rr [[COPY]], [[COPY]], implicit-def $eflags
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; CHECK-NEXT: JCC_1 %bb.1, 2, implicit $eflags
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.2:
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; CHECK-NEXT: [[MOV32r0_:%[0-9]+]]:gr32 = MOV32r0 implicit-def $eflags
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; CHECK-NEXT: TEST64rr [[COPY]], [[COPY]], implicit-def $eflags
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; CHECK-NEXT: $al = SETCCr 4, implicit $eflags
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bb.0:
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JMP_1 %bb.1
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bb.1:
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%0:gr64 = COPY undef $rsi
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TEST64rr %0, %0, implicit-def $eflags
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JCC_1 %bb.1, 2, implicit $eflags
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bb.2:
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; We should not move MOV32r0 up into the loop (that would be correct but
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; slow).
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%1:gr32 = MOV32r0 implicit-def $eflags
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; TEST should not be removed because of MOV32r0.
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TEST64rr %0, %0, implicit-def $eflags
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$al = SETCCr 4, implicit $eflags
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...
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---
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name: opt_zerocmp_user_0
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_zerocmp_user_0
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; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $esi
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; CHECK-NEXT: [[NEG32r:%[0-9]+]]:gr32 = NEG32r [[COPY]], implicit-def $eflags
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; CHECK-NEXT: $al = SETCCr 3, implicit $eflags
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%0:gr32 = COPY $esi
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%1:gr32 = NEG32r %0, implicit-def dead $eflags
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; TEST should be removed.
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TEST32rr %0, %0, implicit-def $eflags
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$al = SETCCr 4, implicit $eflags
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...
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---
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name: opt_redundant_flags_0
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_0
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; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $esi
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr32 = COPY $edi
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; CHECK-NEXT: [[SUB32rr:%[0-9]+]]:gr32 = SUB32rr [[COPY]], [[COPY1]], implicit-def $eflags
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; CHECK-NEXT: $eax = COPY [[SUB32rr]]
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; CHECK-NEXT: $bl = SETCCr 2, implicit $eflags
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%0:gr32 = COPY $esi
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%1:gr32 = COPY $edi
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%2:gr32 = SUB32rr %0, %1, implicit-def dead $eflags
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$eax = COPY %2
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; CMP should be removed.
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CMP32rr %0, %1, implicit-def $eflags
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$bl = SETCCr 2, implicit $eflags
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...
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---
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name: opt_redundant_flags_1
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_1
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; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $esi
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr32 = COPY $edi
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; CHECK-NEXT: [[SUB32rr:%[0-9]+]]:gr32 = SUB32rr [[COPY]], [[COPY1]], implicit-def $eflags
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; CHECK-NEXT: $eax = COPY [[SUB32rr]]
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; CHECK-NEXT: $bl = SETCCr 6, implicit $eflags
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%0:gr32 = COPY $esi
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%1:gr32 = COPY $edi
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%2:gr32 = SUB32rr %0, %1, implicit-def dead $eflags
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$eax = COPY %2
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; CMP should be removed.
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CMP32rr %1, %0, implicit-def $eflags
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$bl = SETCCr 3, implicit $eflags
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...
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---
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name: opt_redundant_flags_2
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_2
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; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $esi
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr32 = COPY $edi
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; CHECK-NEXT: [[SUB32rr:%[0-9]+]]:gr32 = SUB32rr [[COPY]], [[COPY1]], implicit-def $eflags
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; CHECK-NEXT: $cl = SETCCr 2, implicit $eflags
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; CHECK-NEXT: $eax = COPY [[SUB32rr]]
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; CHECK-NEXT: $bl = SETCCr 2, implicit $eflags
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%0:gr32 = COPY $esi
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%1:gr32 = COPY $edi
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%2:gr32 = SUB32rr %0, %1, implicit-def $eflags
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; an extra eflags reader shouldn't stop optimization.
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$cl = SETCCr 2, implicit $eflags
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$eax = COPY %2
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CMP32rr %0, %1, implicit-def $eflags
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$bl = SETCCr 2, implicit $eflags
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...
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---
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name: opt_redundant_flags_cmp_cmp
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_cmp_cmp
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; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $esi
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr32 = COPY $edi
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; CHECK-NEXT: CMP32rr [[COPY]], [[COPY1]], implicit-def $eflags
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; CHECK-NEXT: $cl = SETCCr 2, implicit $eflags
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; CHECK-NEXT: $bl = SETCCr 7, implicit $eflags
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%0:gr32 = COPY $esi
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%1:gr32 = COPY $edi
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CMP32rr %0, %1, implicit-def $eflags
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$cl = SETCCr 2, implicit $eflags
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; 2nd CMP should be removed.
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CMP32rr %1, %0, implicit-def $eflags
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$bl = SETCCr 2, implicit $eflags
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...
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---
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name: opt_redundant_flags_cmp_cmp_2
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_cmp_cmp_2
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; CHECK: [[COPY:%[0-9]+]]:gr64 = COPY $rsi
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr64 = COPY $rdi
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; CHECK-NEXT: CMP64ri8 [[COPY]], 15, implicit-def $eflags
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; CHECK-NEXT: $cl = SETCCr 2, implicit $eflags
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; CHECK-NEXT: $bl = SETCCr 2, implicit $eflags
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%0:gr64 = COPY $rsi
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%1:gr64 = COPY $rdi
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CMP64ri8 %0, 15, implicit-def $eflags
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$cl = SETCCr 2, implicit $eflags
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; 2nd CMP should be removed.
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CMP64ri8 %0, 15, implicit-def $eflags
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$bl = SETCCr 2, implicit $eflags
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...
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---
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name: opt_redundant_flags_test_test
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_test_test
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; CHECK: [[COPY:%[0-9]+]]:gr16 = COPY $ax
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; CHECK-NEXT: TEST16rr [[COPY]], [[COPY]], implicit-def $eflags
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; CHECK-NEXT: $cl = SETCCr 2, implicit $eflags
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; CHECK-NEXT: $bl = SETCCr 2, implicit $eflags
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%0:gr16 = COPY $ax
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TEST16rr %0, %0, implicit-def $eflags
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$cl = SETCCr 2, implicit $eflags
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; 2nd CMP should be removed.
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TEST16rr %0, %0, implicit-def $eflags
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$bl = SETCCr 2, implicit $eflags
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...
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---
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name: opt_redundant_flags_cmp_sub
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_cmp_sub
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; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $esi
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr32 = COPY $edi
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; CHECK-NEXT: CMP32rr [[COPY]], [[COPY1]], implicit-def $eflags
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; CHECK-NEXT: $cl = SETCCr 2, implicit $eflags
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; CHECK-NEXT: $bl = SETCCr 7, implicit $eflags
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%0:gr32 = COPY $esi
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%1:gr32 = COPY $edi
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CMP32rr %0, %1, implicit-def $eflags
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$cl = SETCCr 2, implicit $eflags
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; SUB should be removed.
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dead %2:gr32 = SUB32rr %1, %0, implicit-def $eflags
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$bl = SETCCr 2, implicit $eflags
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...
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---
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name: opt_redundant_flags_cmp_sub_2
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_cmp_sub_2
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; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $esi
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; CHECK-NEXT: CMP32ri [[COPY]], -12345, implicit-def $eflags
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; CHECK-NEXT: $cl = SETCCr 2, implicit $eflags
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; CHECK-NEXT: $bl = SETCCr 2, implicit $eflags
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%0:gr32 = COPY $esi
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CMP32ri %0, -12345, implicit-def $eflags
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$cl = SETCCr 2, implicit $eflags
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; SUB should be removed
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dead %2:gr32 = SUB32ri %0, -12345, implicit-def $eflags
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$bl = SETCCr 2, implicit $eflags
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...
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---
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name: opt_redundant_flags_cmp_sub_noopt
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_cmp_sub_noopt
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; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $esi
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr32 = COPY $edi
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; CHECK-NEXT: CMP32rr [[COPY]], [[COPY1]], implicit-def $eflags
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; CHECK-NEXT: $cl = SETCCr 2, implicit $eflags
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; CHECK-NEXT: [[SUB32rr:%[0-9]+]]:gr32 = SUB32rr [[COPY]], [[COPY1]], implicit-def $eflags
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; CHECK-NEXT: $rdx = COPY [[SUB32rr]]
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; CHECK-NEXT: $bl = SETCCr 2, implicit $eflags
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%0:gr32 = COPY $esi
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%1:gr32 = COPY $edi
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CMP32rr %0, %1, implicit-def $eflags
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$cl = SETCCr 2, implicit $eflags
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; cannot optimize the SUB because the result value is used.
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%2:gr32 = SUB32rr %0, %1, implicit-def $eflags
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$rdx = COPY %2
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$bl = SETCCr 2, implicit $eflags
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...
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---
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name: opt_redundant_flags_cmp_test
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_cmp_test
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; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $esi
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; CHECK-NEXT: CMP32ri8 [[COPY]], 0, implicit-def $eflags
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; CHECK-NEXT: $cl = SETCCr 2, implicit $eflags
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; CHECK-NEXT: $bl = SETCCr 2, implicit $eflags
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%0:gr32 = COPY $esi
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CMP32ri8 %0, 0, implicit-def $eflags
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$cl = SETCCr 2, implicit $eflags
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; TEST should be removed
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TEST32rr %0, %0, implicit-def $eflags
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$bl = SETCCr 2, implicit $eflags
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...
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---
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name: opt_redundant_flags_test_cmp
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_test_cmp
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; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $esi
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; CHECK-NEXT: TEST32rr [[COPY]], [[COPY]], implicit-def $eflags
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; CHECK-NEXT: $cl = SETCCr 2, implicit $eflags
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; CHECK-NEXT: $bl = SETCCr 2, implicit $eflags
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%0:gr32 = COPY $esi
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TEST32rr %0, %0, implicit-def $eflags
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$cl = SETCCr 2, implicit $eflags
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; TEST should be removed
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CMP32ri8 %0, 0, implicit-def $eflags
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$bl = SETCCr 2, implicit $eflags
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...
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---
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name: opt_redundant_flags_cmp_addr
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stack:
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- { id: 0, size: 4, alignment: 4 }
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_cmp_addr
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; CHECK: [[COPY:%[0-9]+]]:gr64 = COPY $rsi
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; CHECK-NEXT: CMP64ri32 [[COPY]], @opt_redundant_flags_cmp_addr + 4, implicit-def $eflags
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; CHECK-NEXT: $cl = SETCCr 7, implicit $eflags
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; CHECK-NEXT: $cl = SETCCr 3, implicit $eflags
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%0:gr64 = COPY $rsi
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CMP64ri32 %0, @opt_redundant_flags_cmp_addr + 4, implicit-def $eflags
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$cl = SETCCr 7, implicit $eflags
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; CMP should be removed
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CMP64ri32 %0, @opt_redundant_flags_cmp_addr + 4, implicit-def $eflags
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$cl = SETCCr 3, implicit $eflags
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...
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---
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name: opt_redundant_flags_cmp_addr_noopt
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stack:
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- { id: 0, size: 4, alignment: 4 }
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_cmp_addr_noopt
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; CHECK: [[COPY:%[0-9]+]]:gr64 = COPY $rsi
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; CHECK-NEXT: CMP64ri32 [[COPY]], @opt_redundant_flags_cmp_addr_noopt + 24, implicit-def $eflags
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; CHECK-NEXT: $cl = SETCCr 7, implicit $eflags
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; CHECK-NEXT: CMP64ri32 [[COPY]], 24, implicit-def $eflags
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; CHECK-NEXT: $cl = SETCCr 3, implicit $eflags
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%0:gr64 = COPY $rsi
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CMP64ri32 %0, @opt_redundant_flags_cmp_addr_noopt + 24, implicit-def $eflags
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$cl = SETCCr 7, implicit $eflags
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; CMP should not be removed
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CMP64ri32 %0, 24, implicit-def $eflags
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$cl = SETCCr 3, implicit $eflags
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...
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---
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name: opt_redundant_flags_adjusted_imm_0
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body: |
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bb.0:
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; CHECK-LABEL: name: opt_redundant_flags_adjusted_imm_0
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|
; CHECK: [[COPY:%[0-9]+]]:gr64 = COPY $rsi
|
|
; CHECK-NEXT: CMP64ri8 [[COPY]], 1, implicit-def $eflags
|
|
; CHECK-NEXT: $cl = SETCCr 4, implicit $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 15, implicit $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 7, implicit $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 14, implicit $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 6, implicit $eflags
|
|
%0:gr64 = COPY $rsi
|
|
; CMP+SETCC %0 == 1
|
|
CMP64ri8 %0, 1, implicit-def $eflags
|
|
$cl = SETCCr 4, implicit $eflags
|
|
; CMP+SETCC %0 >= 2; CMP can be removed.
|
|
CMP64ri8 %0, 2, implicit-def $eflags
|
|
; %0 >=s 2 --> %0 >s 1
|
|
$bl = SETCCr 13, implicit $eflags
|
|
; %0 >=u 2 --> %0 >u 1
|
|
$bl = SETCCr 3, implicit $eflags
|
|
; %0 <s 2 --> %0 <=s 1
|
|
$bl = SETCCr 12, implicit $eflags
|
|
; %0 <u 2 --> %0 <=u 1
|
|
$bl = SETCCr 2, implicit $eflags
|
|
...
|
|
---
|
|
name: opt_redundant_flags_adjusted_imm_1
|
|
body: |
|
|
bb.0:
|
|
; CHECK-LABEL: name: opt_redundant_flags_adjusted_imm_1
|
|
; CHECK: [[COPY:%[0-9]+]]:gr64 = COPY $rsi
|
|
; CHECK-NEXT: CMP64ri8 [[COPY]], 42, implicit-def $eflags
|
|
; CHECK-NEXT: $cl = SETCCr 5, implicit $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 13, implicit $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 3, implicit $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 12, implicit $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 2, implicit $eflags
|
|
%0:gr64 = COPY $rsi
|
|
; CMP+SETCC %0 != 42
|
|
CMP64ri8 %0, 42, implicit-def $eflags
|
|
$cl = SETCCr 5, implicit $eflags
|
|
; CMP+SETCC %0 >= 2; CMP can be removed.
|
|
CMP64ri8 %0, 41, implicit-def $eflags
|
|
; %0 >s 41 --> %0 >=s 42
|
|
$bl = SETCCr 15, implicit $eflags
|
|
; %0 >u 41 --> %0 >=u 42
|
|
$bl = SETCCr 7, implicit $eflags
|
|
; %0 <=s 41 --> %0 <s 42
|
|
$bl = SETCCr 14, implicit $eflags
|
|
; %0 <=u 41 --> %0 <u 42
|
|
$bl = SETCCr 6, implicit $eflags
|
|
...
|
|
---
|
|
name: opt_redundant_flags_adjusted_imm_test_cmp
|
|
body: |
|
|
bb.0:
|
|
; CHECK-LABEL: name: opt_redundant_flags_adjusted_imm_test_cmp
|
|
; CHECK: [[COPY:%[0-9]+]]:gr8 = COPY $bl
|
|
; CHECK-NEXT: TEST8rr [[COPY]], [[COPY]], implicit-def $eflags
|
|
; CHECK-NEXT: $cl = SETCCr 14, implicit $eflags
|
|
; CHECK-NEXT: $cl = SETCCr 7, implicit $eflags
|
|
; CHECK-NEXT: $cl = SETCCr 12, implicit $eflags
|
|
%0:gr8 = COPY $bl
|
|
TEST8rr %0, %0, implicit-def $eflags
|
|
; SET %0 <=s 0
|
|
$cl = SETCCr 14, implicit $eflags
|
|
; CMP should be removed (%0 >=u 1)
|
|
CMP8ri %0, 1, implicit-def $eflags
|
|
$cl = SETCCr 3, implicit $eflags
|
|
|
|
; CMP should be removed (%0 <=s -1)
|
|
CMP8ri %0, -1, implicit-def $eflags
|
|
$cl = SETCCr 14, implicit $eflags
|
|
...
|
|
---
|
|
name: opt_redundant_flags_adjusted_imm_cmp_test
|
|
body: |
|
|
bb.0:
|
|
; CHECK-LABEL: name: opt_redundant_flags_adjusted_imm_cmp_test
|
|
; CHECK: [[COPY:%[0-9]+]]:gr64 = COPY $rsi
|
|
; CHECK-NEXT: CMP64ri32 [[COPY]], 1, implicit-def $eflags
|
|
; CHECK-NEXT: $cl = SETCCr 13, implicit $eflags
|
|
; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr64 = COPY $edi
|
|
; CHECK-NEXT: CMP64ri32 [[COPY1]], -1, implicit-def $eflags
|
|
; CHECK-NEXT: $cl = SETCCr 14, implicit $eflags
|
|
%0:gr64 = COPY $rsi
|
|
CMP64ri32 %0, 1, implicit-def $eflags
|
|
; TEST should be removed
|
|
TEST64rr %0, %0, implicit-def $eflags
|
|
$cl = SETCCr 15, implicit $eflags
|
|
|
|
%1:gr64 = COPY $edi
|
|
CMP64ri32 %1, -1, implicit-def $eflags
|
|
; TEST should be removed
|
|
TEST64rr %1, %1, implicit-def $eflags
|
|
$cl = SETCCr 12, implicit $eflags
|
|
...
|
|
---
|
|
name: opt_redundant_flags_adjusted_imm_noopt_0
|
|
body: |
|
|
bb.0:
|
|
; CHECK-LABEL: name: opt_redundant_flags_adjusted_imm_noopt_0
|
|
; CHECK: [[COPY:%[0-9]+]]:gr64 = COPY $rsi
|
|
; CHECK-NEXT: CMP64ri8 [[COPY]], 42, implicit-def $eflags
|
|
; CHECK-NEXT: $cl = SETCCr 4, implicit $eflags
|
|
; CHECK-NEXT: CMP64ri8 [[COPY]], 41, implicit-def $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 4, implicit $eflags
|
|
%0:gr64 = COPY $rsi
|
|
; CMP+SETCC %0 <s 1
|
|
CMP64ri8 %0, 42, implicit-def $eflags
|
|
$cl = SETCCr 4, implicit $eflags
|
|
; CMP should not be removed.
|
|
CMP64ri8 %0, 41, implicit-def $eflags
|
|
; %0 == 41
|
|
$bl = SETCCr 4, implicit $eflags
|
|
...
|
|
---
|
|
name: opt_redundant_flags_adjusted_imm_noopt_1
|
|
body: |
|
|
bb.0:
|
|
; CHECK-LABEL: name: opt_redundant_flags_adjusted_imm_noopt_1
|
|
; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $esi
|
|
; CHECK-NEXT: CMP32ri [[COPY]], 2147483647, implicit-def $eflags
|
|
; CHECK-NEXT: CMP32ri [[COPY]], -2147483648, implicit-def $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 12, implicit $eflags
|
|
; CHECK-NEXT: CMP32ri [[COPY]], 4294967295, implicit-def $eflags
|
|
; CHECK-NEXT: CMP32ri [[COPY]], -2147483648, implicit-def $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 12, implicit $eflags
|
|
; CHECK-NEXT: CMP32ri [[COPY]], 2147483647, implicit-def $eflags
|
|
; CHECK-NEXT: CMP32ri [[COPY]], -2147483648, implicit-def $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 13, implicit $eflags
|
|
; CHECK-NEXT: CMP32ri [[COPY]], 4294967295, implicit-def $eflags
|
|
; CHECK-NEXT: CMP32ri [[COPY]], 0, implicit-def $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 2, implicit $eflags
|
|
; CHECK-NEXT: CMP32ri [[COPY]], 4294967295, implicit-def $eflags
|
|
; CHECK-NEXT: CMP32ri [[COPY]], 0, implicit-def $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 3, implicit $eflags
|
|
%0:gr32 = COPY $esi
|
|
; CMP+SETCC %0 == INT32_MAX
|
|
CMP32ri %0, 2147483647, implicit-def $eflags
|
|
; CMP should not be removed.
|
|
CMP32ri %0, -2147483648, implicit-def $eflags
|
|
; %0 <s INT32_MIN
|
|
$bl = SETCCr 12, implicit $eflags
|
|
|
|
CMP32ri %0, 4294967295, implicit-def $eflags
|
|
; CMP should not be removed.
|
|
CMP32ri %0, -2147483648, implicit-def $eflags
|
|
$bl = SETCCr 12, implicit $eflags
|
|
|
|
CMP32ri %0, 2147483647, implicit-def $eflags
|
|
; CMP should not be removed.
|
|
CMP32ri %0, -2147483648, implicit-def $eflags
|
|
$bl = SETCCr 13, implicit $eflags
|
|
|
|
CMP32ri %0, 4294967295, implicit-def $eflags
|
|
; should not be removed
|
|
CMP32ri %0, 0, implicit-def $eflags
|
|
$bl = SETCCr 2, implicit $eflags
|
|
|
|
CMP32ri %0, 4294967295, implicit-def $eflags
|
|
; should not be removed
|
|
CMP32ri %0, 0, implicit-def $eflags
|
|
$bl = SETCCr 3, implicit $eflags
|
|
...
|
|
---
|
|
name: opt_redundant_flags_adjusted_imm_noopt_2
|
|
body: |
|
|
bb.0:
|
|
; CHECK-LABEL: name: opt_redundant_flags_adjusted_imm_noopt_2
|
|
; CHECK: [[COPY:%[0-9]+]]:gr16 = COPY $cx
|
|
; CHECK-NEXT: CMP16ri [[COPY]], -32768, implicit-def $eflags
|
|
; CHECK-NEXT: CMP16ri [[COPY]], 32767, implicit-def $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 15, implicit $eflags
|
|
; CHECK-NEXT: CMP16ri [[COPY]], 65535, implicit-def $eflags
|
|
; CHECK-NEXT: CMP16ri [[COPY]], 32767, implicit-def $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 15, implicit $eflags
|
|
; CHECK-NEXT: CMP16ri [[COPY]], -32768, implicit-def $eflags
|
|
; CHECK-NEXT: CMP16ri [[COPY]], 32767, implicit-def $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 14, implicit $eflags
|
|
; CHECK-NEXT: CMP16ri [[COPY]], 0, implicit-def $eflags
|
|
; CHECK-NEXT: CMP16ri [[COPY]], 65535, implicit-def $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 4, implicit $eflags
|
|
; CHECK-NEXT: CMP16ri [[COPY]], 0, implicit-def $eflags
|
|
; CHECK-NEXT: CMP16ri [[COPY]], 65535, implicit-def $eflags
|
|
; CHECK-NEXT: $bl = SETCCr 6, implicit $eflags
|
|
%0:gr16 = COPY $cx
|
|
; CMP+SETCC %0 == INT16_MIN
|
|
CMP16ri %0, -32768, implicit-def $eflags
|
|
; CMP should not be removed.
|
|
CMP16ri %0, 32767, implicit-def $eflags
|
|
; %0 >s INT16_MAX
|
|
$bl = SETCCr 15, implicit $eflags
|
|
|
|
CMP16ri %0, 65535, implicit-def $eflags
|
|
; CMP should not be removed.
|
|
CMP16ri %0, 32767, implicit-def $eflags
|
|
$bl = SETCCr 15, implicit $eflags
|
|
|
|
CMP16ri %0, -32768, implicit-def $eflags
|
|
; CMP should not be removed.
|
|
CMP16ri %0, 32767, implicit-def $eflags
|
|
$bl = SETCCr 14, implicit $eflags
|
|
|
|
CMP16ri %0, 0, implicit-def $eflags
|
|
; should not be removed
|
|
CMP16ri %0, 65535, implicit-def $eflags
|
|
$bl = SETCCr 4, implicit $eflags
|
|
|
|
CMP16ri %0, 0, implicit-def $eflags
|
|
; should not be removed
|
|
CMP16ri %0, 65535, implicit-def $eflags
|
|
$bl = SETCCr 6, implicit $eflags
|
|
...
|
|
---
|
|
name: opt_adjusted_imm_multiple_blocks
|
|
body: |
|
|
; CHECK-LABEL: name: opt_adjusted_imm_multiple_blocks
|
|
; CHECK: bb.0:
|
|
; CHECK-NEXT: successors: %bb.1(0x40000000), %bb.3(0x40000000)
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: [[COPY:%[0-9]+]]:gr32 = COPY $eax
|
|
; CHECK-NEXT: CMP32ri [[COPY]], 20, implicit-def $eflags
|
|
; CHECK-NEXT: JCC_1 %bb.1, 4, implicit $eflags
|
|
; CHECK-NEXT: JMP_1 %bb.3
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: bb.1:
|
|
; CHECK-NEXT: successors: %bb.2(0x40000000), %bb.3(0x40000000)
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: JCC_1 %bb.2, 15, implicit $eflags
|
|
; CHECK-NEXT: JMP_1 %bb.3
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: bb.2:
|
|
; CHECK-NEXT: successors: %bb.3(0x80000000)
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: JMP_1 %bb.3
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: bb.3:
|
|
; CHECK-NEXT: RET 0
|
|
bb.0:
|
|
%0:gr32 = COPY $eax
|
|
CMP32ri %0, 20, implicit-def $eflags
|
|
JCC_1 %bb.1, 4, implicit $eflags
|
|
JMP_1 %bb.3
|
|
|
|
bb.1:
|
|
; CMP can be removed when adjusting the JCC.
|
|
CMP32ri %0, 21, implicit-def $eflags
|
|
JCC_1 %bb.2, 13, implicit $eflags
|
|
JMP_1 %bb.3
|
|
|
|
bb.2:
|
|
JMP_1 %bb.3
|
|
|
|
bb.3:
|
|
RET 0
|
|
...
|
|
---
|
|
name: opt_adjusted_imm_multiple_blocks_noopt
|
|
body: |
|
|
; CHECK-LABEL: name: opt_adjusted_imm_multiple_blocks_noopt
|
|
; CHECK: bb.0:
|
|
; CHECK-NEXT: successors: %bb.1(0x40000000), %bb.3(0x40000000)
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: [[COPY:%[0-9]+]]:gr32 = COPY $eax
|
|
; CHECK-NEXT: CMP32ri [[COPY]], 20, implicit-def $eflags
|
|
; CHECK-NEXT: JCC_1 %bb.1, 4, implicit $eflags
|
|
; CHECK-NEXT: JMP_1 %bb.3
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: bb.1:
|
|
; CHECK-NEXT: successors: %bb.2(0x40000000), %bb.3(0x40000000)
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: CMP32ri [[COPY]], 21, implicit-def $eflags
|
|
; CHECK-NEXT: JCC_1 %bb.2, 13, implicit $eflags
|
|
; CHECK-NEXT: JMP_1 %bb.3
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: bb.2:
|
|
; CHECK-NEXT: successors: %bb.3(0x80000000)
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: $al = SETCCr 4, implicit $eflags
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: bb.3:
|
|
; CHECK-NEXT: RET 0
|
|
bb.0:
|
|
%0:gr32 = COPY $eax
|
|
CMP32ri %0, 20, implicit-def $eflags
|
|
JCC_1 %bb.1, 4, implicit $eflags
|
|
JMP_1 %bb.3
|
|
|
|
bb.1:
|
|
; The following CMP should not be optimized because $eflags is live-out
|
|
CMP32ri %0, 21, implicit-def $eflags
|
|
JCC_1 %bb.2, 13, implicit $eflags
|
|
JMP_1 %bb.3
|
|
|
|
bb.2:
|
|
liveins: $eflags
|
|
$al = SETCCr 4, implicit $eflags
|
|
|
|
bb.3:
|
|
RET 0
|
|
...
|
|
---
|
|
name: opt_shift_cmp_zero
|
|
body: |
|
|
bb.0:
|
|
; CHECK-LABEL: name: opt_shift_cmp_zero
|
|
; CHECK: [[COPY:%[0-9]+]]:gr64 = COPY $rsi
|
|
; CHECK-NEXT: [[SHL64ri:%[0-9]+]]:gr64 = SHL64ri [[COPY]], 7, implicit-def $eflags
|
|
; CHECK-NEXT: $al = SETCCr 4, implicit $eflags
|
|
%0:gr64 = COPY $rsi
|
|
%1:gr64 = SHL64ri %0, 7, implicit-def dead $eflags
|
|
; TEST should be removed.
|
|
TEST64rr %1, %1, implicit-def $eflags
|
|
$al = SETCCr 4, implicit $eflags
|
|
...
|
|
---
|
|
name: noopt_shift_cmp_zero
|
|
body: |
|
|
bb.0:
|
|
; CHECK-LABEL: name: noopt_shift_cmp_zero
|
|
; CHECK: [[COPY:%[0-9]+]]:gr64 = COPY $rsi
|
|
; CHECK-NEXT: [[SHL64ri:%[0-9]+]]:gr64 = SHL64ri [[COPY]], 9, implicit-def dead $eflags
|
|
; CHECK-NEXT: TEST64rr [[SHL64ri]], [[SHL64ri]], implicit-def $eflags
|
|
; CHECK-NEXT: $al = SETCCr 14, implicit $eflags
|
|
%0:gr64 = COPY $rsi
|
|
%1:gr64 = SHL64ri %0, 9, implicit-def dead $eflags
|
|
; TEST cannot be removed if a user relies on the OF flag.
|
|
TEST64rr %1, %1, implicit-def $eflags
|
|
$al = SETCCr 14, implicit $eflags
|
|
...
|
|
---
|
|
name: noopt_shift_cmp_zero_multiblock
|
|
body: |
|
|
; CHECK-LABEL: name: noopt_shift_cmp_zero_multiblock
|
|
; CHECK: bb.0:
|
|
; CHECK-NEXT: successors: %bb.1(0x80000000)
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64 = COPY $rsi
|
|
; CHECK-NEXT: [[SHL64ri:%[0-9]+]]:gr64 = SHL64ri [[COPY]], 9, implicit-def dead $eflags
|
|
; CHECK-NEXT: TEST64rr [[SHL64ri]], [[SHL64ri]], implicit-def $eflags
|
|
; CHECK-NEXT: JMP_1 %bb.1
|
|
; CHECK-NEXT: {{ $}}
|
|
; CHECK-NEXT: bb.1:
|
|
; CHECK-NEXT: $al = SETCCr 14, implicit $eflags
|
|
bb.0:
|
|
%0:gr64 = COPY $rsi
|
|
%1:gr64 = SHL64ri %0, 9, implicit-def dead $eflags
|
|
; TEST cannot be removed if a user relies on the OF flag.
|
|
TEST64rr %1, %1, implicit-def $eflags
|
|
JMP_1 %bb.1
|
|
|
|
bb.1:
|
|
liveins: $eflags
|
|
$al = SETCCr 14, implicit $eflags
|
|
...
|