93 lines · plain
1# RUN: llc -mtriple=i686-unknown-unknown -run-pass=x86-flags-copy-lowering \2# RUN: -print-after=x86-flags-copy-lowering %s -o - | FileCheck %s3#4# Check that $eflags is removed from live-in lists of successor blocks.5#6# CHECK-NOT: liveins: $eflags7 8--- |9 define void @fun(i16 %arg, i64 %arg1, i8 %arg2, ptr %arg3, i32 %arg4) { ret void}10...11---12name: fun13alignment: 1614tracksRegLiveness: true15registers:16 - { id: 0, class: gr16 }17 - { id: 1, class: gr16 }18 - { id: 2, class: gr16 }19 - { id: 3, class: gr32 }20 - { id: 4, class: gr32 }21 - { id: 5, class: gr8 }22 - { id: 6, class: gr32 }23 - { id: 7, class: gr32 }24 - { id: 8, class: gr32 }25 - { id: 9, class: gr32 }26 - { id: 10, class: gr32 }27 - { id: 11, class: gr32 }28 - { id: 12, class: gr32 }29 - { id: 13, class: gr8 }30 - { id: 14, class: gr32 }31 - { id: 15, class: gr32 }32 - { id: 16, class: gr32_abcd }33 - { id: 17, class: gr8 }34 - { id: 18, class: gr8 }35 - { id: 19, class: gr32 }36 - { id: 20, class: gr32 }37frameInfo:38 maxAlignment: 439fixedStack:40 - { id: 0, offset: 20, size: 4, alignment: 4, isImmutable: true }41 - { id: 1, offset: 16, size: 4, alignment: 4, isImmutable: true }42 - { id: 2, offset: 12, size: 1, alignment: 4, isImmutable: true }43 - { id: 3, offset: 8, size: 4, alignment: 4, isImmutable: true }44 - { id: 4, offset: 4, size: 4, alignment: 4, isImmutable: true }45 - { id: 5, size: 2, alignment: 4, isImmutable: true }46machineFunctionInfo: {}47body: |48 bb.0:49 %4:gr32 = MOV32rm %fixed-stack.3, 1, $noreg, 0, $noreg :: (load (s32) from %fixed-stack.3)50 %3:gr32 = MOV32rm %fixed-stack.4, 1, $noreg, 0, $noreg :: (load (s32) from %fixed-stack.4)51 %7:gr32 = MOV32rm %fixed-stack.0, 1, $noreg, 0, $noreg :: (load (s32) from %fixed-stack.0)52 %6:gr32 = MOV32rm %fixed-stack.1, 1, $noreg, 0, $noreg :: (load (s32) from %fixed-stack.1)53 %5:gr8 = MOV8rm %fixed-stack.2, 1, $noreg, 0, $noreg :: (load (s8) from %fixed-stack.2, align 4)54 %9:gr32 = IMPLICIT_DEF55 %11:gr32 = IMPLICIT_DEF56 57 bb.1:58 successors: %bb.2, %bb.359 60 CMP32rr %3, %9, implicit-def $eflags61 %10:gr32 = SBB32rr %4, %11, implicit-def $eflags, implicit $eflags62 %12:gr32 = COPY $eflags63 %13:gr8 = SETCCr 12, implicit $eflags64 %14:gr32 = MOVZX32rr8 killed %1365 %15:gr32 = NEG32r %14, implicit-def dead $eflags66 %16:gr32_abcd = MOV32r0 implicit-def dead $eflags67 $eflags = COPY %1268 %17:gr8 = COPY %16.sub_8bit69 JCC_1 %bb.3, 12, implicit $eflags70 71 bb.2:72 liveins: $eflags73 74 75 bb.3:76 successors: %bb.4, %bb.577 liveins: $eflags78 79 %18:gr8 = PHI %5, %bb.2, %17, %bb.180 MOV8mr %6, 1, $noreg, 0, $noreg, killed %18 :: (volatile store (s8) into %ir.arg3)81 JCC_1 %bb.5, 12, implicit $eflags82 83 bb.4:84 85 bb.5:86 %19:gr32 = PHI %16, %bb.4, %15, %bb.387 $eax = COPY %788 CDQ implicit-def $eax, implicit-def $edx, implicit $eax89 IDIV32r killed %19, implicit-def dead $eax, implicit-def $edx, implicit-def dead $eflags, implicit $eax, implicit $edx90 JMP_1 %bb.191 92...93