# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py # RUN: llc -mtriple=aarch64-unknown-unknown -global-isel -verify-machineinstrs -run-pass=legalizer %s -o - | FileCheck %s --- | ; ModuleID = '/tmp/test.ll' source_filename = "/tmp/test.ll" target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" target triple = "aarch64-unknown-unknown" define i32 @legalize_phi(i32 %argc) { entry: ret i32 0 } define i64* @legalize_phi_ptr(i64* %a, i64* %b, i1 %cond) { entry: ret i64* null } define i32 @legalize_phi_empty(i32 %argc) { entry: ret i32 0 } define i32 @legalize_phi_loop(i32 %argc) { entry: ret i32 0 } define i32 @legalize_phi_cycle(i32 %argc) { entry: ret i32 0 } define i32 @legalize_phi_same_bb(i32 %argc) { entry: ret i32 0 } define i32 @legalize_phi_diff_bb(i32 %argc, i32 %argc2) { entry: ret i32 0 } ... --- name: legalize_phi alignment: 2 exposesReturnsTwice: false legalized: false regBankSelected: false selected: false tracksRegLiveness: true registers: - { id: 0, class: _, preferred-register: '' } - { id: 1, class: _, preferred-register: '' } - { id: 2, class: _, preferred-register: '' } - { id: 3, class: _, preferred-register: '' } - { id: 4, class: _, preferred-register: '' } - { id: 5, class: _, preferred-register: '' } - { id: 6, class: _, preferred-register: '' } - { id: 7, class: _, preferred-register: '' } - { id: 8, class: _, preferred-register: '' } - { id: 9, class: _, preferred-register: '' } - { id: 10, class: _, preferred-register: '' } liveins: body: | ; CHECK-LABEL: name: legalize_phi ; CHECK: bb.0: ; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000) ; CHECK: liveins: %w0 ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY %w0 ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0 ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 1 ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 2 ; CHECK: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(ugt), [[COPY]](s32), [[C]] ; CHECK: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[ICMP]](s32) ; CHECK: G_BRCOND [[TRUNC]](s1), %bb.1 ; CHECK: G_BR %bb.2 ; CHECK: bb.1: ; CHECK: successors: %bb.3(0x80000000) ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[C1]] ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[ADD]](s32) ; CHECK: G_BR %bb.3 ; CHECK: bb.2: ; CHECK: successors: %bb.3(0x80000000) ; CHECK: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[C2]] ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[ADD1]](s32) ; CHECK: bb.3: ; CHECK: [[PHI:%[0-9]+]]:_(s16) = G_PHI [[TRUNC1]](s16), %bb.1, [[TRUNC2]](s16), %bb.2 ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 1 ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[PHI]](s16) ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[ANYEXT]], [[C3]] ; CHECK: %w0 = COPY [[AND]](s32) ; CHECK: RET_ReallyLR implicit %w0 bb.0: ; Test that we insert legalization artifacts(Truncs here) into the correct BBs ; while legalizing the G_PHI to s16. successors: %bb.1(0x40000000), %bb.2(0x40000000) liveins: %w0 %0(s32) = COPY %w0 %1(s32) = G_CONSTANT i32 0 %3(s32) = G_CONSTANT i32 1 %6(s32) = G_CONSTANT i32 2 %2(s1) = G_ICMP intpred(ugt), %0(s32), %1 G_BRCOND %2(s1), %bb.1 G_BR %bb.2 bb.1: successors: %bb.3(0x80000000) %4(s32) = G_ADD %0, %3 %5(s1) = G_TRUNC %4(s32) G_BR %bb.3 bb.2: successors: %bb.3(0x80000000) %7(s32) = G_ADD %0, %6 %8(s1) = G_TRUNC %7(s32) bb.3: %9(s1) = G_PHI %5(s1), %bb.1, %8(s1), %bb.2 %10(s32) = G_ZEXT %9(s1) %w0 = COPY %10(s32) RET_ReallyLR implicit %w0 ... --- name: legalize_phi_ptr alignment: 2 exposesReturnsTwice: false legalized: false regBankSelected: false selected: false tracksRegLiveness: true registers: - { id: 0, class: _, preferred-register: '' } - { id: 1, class: _, preferred-register: '' } - { id: 2, class: _, preferred-register: '' } - { id: 3, class: _, preferred-register: '' } - { id: 4, class: _, preferred-register: '' } - { id: 5, class: _, preferred-register: '' } liveins: body: | ; CHECK-LABEL: name: legalize_phi_ptr ; CHECK: bb.0: ; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000) ; CHECK: liveins: %w2, %x0, %x1 ; CHECK: [[COPY:%[0-9]+]]:_(p0) = COPY %x0 ; CHECK: [[COPY1:%[0-9]+]]:_(p0) = COPY %x1 ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY %w2 ; CHECK: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[COPY2]](s32) ; CHECK: G_BRCOND [[TRUNC]](s1), %bb.1 ; CHECK: G_BR %bb.2 ; CHECK: bb.1: ; CHECK: successors: %bb.2(0x80000000) ; CHECK: bb.2: ; CHECK: [[PHI:%[0-9]+]]:_(p0) = G_PHI [[COPY]](p0), %bb.0, [[COPY1]](p0), %bb.1 ; CHECK: %x0 = COPY [[PHI]](p0) ; CHECK: RET_ReallyLR implicit %x0 bb.1: successors: %bb.2, %bb.3 liveins: %w2, %x0, %x1 %0(p0) = COPY %x0 %1(p0) = COPY %x1 %4(s32) = COPY %w2 %2(s1) = G_TRUNC %4(s32) G_BRCOND %2(s1), %bb.2 G_BR %bb.3 bb.2: successors: %bb.3 bb.3: %3(p0) = G_PHI %0(p0), %bb.1, %1(p0), %bb.2 %x0 = COPY %3(p0) RET_ReallyLR implicit %x0 ... --- name: legalize_phi_empty alignment: 2 exposesReturnsTwice: false legalized: false regBankSelected: false selected: false tracksRegLiveness: true registers: - { id: 0, class: _, preferred-register: '' } - { id: 1, class: _, preferred-register: '' } - { id: 2, class: _, preferred-register: '' } - { id: 3, class: _, preferred-register: '' } - { id: 4, class: _, preferred-register: '' } - { id: 5, class: _, preferred-register: '' } - { id: 6, class: _, preferred-register: '' } - { id: 7, class: _, preferred-register: '' } - { id: 8, class: _, preferred-register: '' } - { id: 9, class: _, preferred-register: '' } - { id: 10, class: _, preferred-register: '' } liveins: body: | ; CHECK-LABEL: name: legalize_phi_empty ; CHECK: bb.0: ; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000) ; CHECK: liveins: %w0 ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY %w0 ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0 ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 3 ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 1 ; CHECK: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(ugt), [[COPY]](s32), [[C]] ; CHECK: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[ICMP]](s32) ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[C1]] ; CHECK: G_BRCOND [[TRUNC]](s1), %bb.1 ; CHECK: G_BR %bb.2 ; CHECK: bb.1: ; CHECK: successors: %bb.3(0x80000000) ; CHECK: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[C2]] ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[ADD1]](s32) ; CHECK: G_BR %bb.3 ; CHECK: bb.2: ; CHECK: successors: %bb.3(0x80000000) ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[ADD]](s32) ; CHECK: bb.3: ; CHECK: [[PHI:%[0-9]+]]:_(s16) = G_PHI [[TRUNC1]](s16), %bb.1, [[TRUNC2]](s16), %bb.2 ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 1 ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[PHI]](s16) ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[ANYEXT]], [[C3]] ; CHECK: %w0 = COPY [[AND]](s32) ; CHECK: RET_ReallyLR implicit %w0 bb.0: successors: %bb.1(0x40000000), %bb.2(0x40000000) liveins: %w0 ; Test that we properly legalize a phi with a predecessor that's empty %0(s32) = COPY %w0 %1(s32) = G_CONSTANT i32 0 %3(s32) = G_CONSTANT i32 3 %6(s32) = G_CONSTANT i32 1 %2(s1) = G_ICMP intpred(ugt), %0(s32), %1 %4(s32) = G_ADD %0, %3 %5(s1) = G_TRUNC %4(s32) G_BRCOND %2(s1), %bb.1 G_BR %bb.2 bb.1: successors: %bb.3(0x80000000) %7(s32) = G_ADD %0, %6 %8(s1) = G_TRUNC %7(s32) G_BR %bb.3 bb.2: successors: %bb.3(0x80000000) bb.3: %9(s1) = G_PHI %8(s1), %bb.1, %5(s1), %bb.2 %10(s32) = G_ZEXT %9(s1) %w0 = COPY %10(s32) RET_ReallyLR implicit %w0 ... --- name: legalize_phi_loop alignment: 2 exposesReturnsTwice: false legalized: false regBankSelected: false selected: false tracksRegLiveness: true registers: - { id: 0, class: _, preferred-register: '' } - { id: 1, class: _, preferred-register: '' } - { id: 2, class: _, preferred-register: '' } - { id: 3, class: _, preferred-register: '' } - { id: 4, class: _, preferred-register: '' } - { id: 5, class: _, preferred-register: '' } - { id: 6, class: _, preferred-register: '' } - { id: 7, class: _, preferred-register: '' } liveins: body: | ; CHECK-LABEL: name: legalize_phi_loop ; CHECK: bb.0: ; CHECK: successors: %bb.1(0x80000000) ; CHECK: liveins: %w0 ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY %w0 ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1 ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 0 ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[C1]](s32) ; CHECK: bb.1: ; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000) ; CHECK: [[PHI:%[0-9]+]]:_(s16) = G_PHI [[TRUNC]](s16), %bb.0, %14(s16), %bb.1 ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[PHI]](s16) ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY [[C]](s32) ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[ANYEXT]], [[COPY1]] ; CHECK: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[ADD]](s32) ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 255 ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[ADD]](s32) ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY2]], [[C2]] ; CHECK: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(ugt), [[AND]](s32), [[COPY]] ; CHECK: [[TRUNC2:%[0-9]+]]:_(s1) = G_TRUNC [[ICMP]](s32) ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[ADD]](s32) ; CHECK: G_BRCOND [[TRUNC2]](s1), %bb.1 ; CHECK: bb.2: ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 255 ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[ADD]](s32) ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C3]] ; CHECK: %w0 = COPY [[AND1]](s32) ; CHECK: RET_ReallyLR implicit %w0 bb.0: successors: %bb.1(0x80000000) liveins: %w0 ; Test that we properly legalize a phi that uses a value from the same BB %0(s32) = COPY %w0 %2(s8) = G_CONSTANT i8 1 %7(s8) = G_CONSTANT i8 0 bb.1: successors: %bb.1(0x40000000), %bb.3(0x40000000) %1(s8) = G_PHI %7(s8), %bb.0, %3(s8), %bb.1 %3(s8) = G_ADD %1, %2 %4(s32) = G_ZEXT %3(s8) %5(s1) = G_ICMP intpred(ugt), %4(s32), %0 G_BRCOND %5(s1), %bb.1 bb.3: %6(s32) = G_ZEXT %3(s8) %w0 = COPY %6(s32) RET_ReallyLR implicit %w0 ... --- name: legalize_phi_cycle alignment: 2 exposesReturnsTwice: false legalized: false regBankSelected: false selected: false tracksRegLiveness: true registers: - { id: 0, class: _, preferred-register: '' } - { id: 1, class: _, preferred-register: '' } - { id: 2, class: _, preferred-register: '' } - { id: 3, class: _, preferred-register: '' } - { id: 4, class: _, preferred-register: '' } liveins: body: | ; CHECK-LABEL: name: legalize_phi_cycle ; CHECK: bb.0: ; CHECK: successors: %bb.1(0x80000000) ; CHECK: liveins: %w0 ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY %w0 ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0 ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[C]](s32) ; CHECK: bb.1: ; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000) ; CHECK: [[PHI:%[0-9]+]]:_(s16) = G_PHI [[TRUNC]](s16), %bb.0, %8(s16), %bb.1 ; CHECK: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[PHI]](s16) ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 255 ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[PHI]](s16) ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[ANYEXT]], [[C1]] ; CHECK: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(ugt), [[AND]](s32), [[COPY]] ; CHECK: [[TRUNC2:%[0-9]+]]:_(s1) = G_TRUNC [[ICMP]](s32) ; CHECK: [[COPY1:%[0-9]+]]:_(s16) = COPY [[PHI]](s16) ; CHECK: G_BRCOND [[TRUNC2]](s1), %bb.1 ; CHECK: bb.2: ; CHECK: %w0 = COPY [[AND]](s32) ; CHECK: RET_ReallyLR implicit %w0 bb.0: successors: %bb.1(0x80000000) liveins: %w0 ; Test that we properly legalize a phi that uses itself %0(s32) = COPY %w0 %4(s8) = G_CONSTANT i8 0 bb.1: successors: %bb.1(0x40000000), %bb.3(0x40000000) %1(s8) = G_PHI %4(s8), %bb.0, %1(s8), %bb.1 %2(s32) = G_ZEXT %1(s8) %3(s1) = G_ICMP intpred(ugt), %2(s32), %0 G_BRCOND %3(s1), %bb.1 bb.3: %w0 = COPY %2(s32) RET_ReallyLR implicit %w0 ... --- name: legalize_phi_same_bb alignment: 2 exposesReturnsTwice: false legalized: false regBankSelected: false selected: false tracksRegLiveness: true registers: - { id: 0, class: _, preferred-register: '' } - { id: 1, class: _, preferred-register: '' } - { id: 2, class: _, preferred-register: '' } - { id: 3, class: _, preferred-register: '' } - { id: 4, class: _, preferred-register: '' } - { id: 5, class: _, preferred-register: '' } - { id: 6, class: _, preferred-register: '' } - { id: 7, class: _, preferred-register: '' } - { id: 8, class: _, preferred-register: '' } - { id: 9, class: _, preferred-register: '' } - { id: 10, class: _, preferred-register: '' } - { id: 11, class: _, preferred-register: '' } - { id: 12, class: _, preferred-register: '' } - { id: 13, class: _, preferred-register: '' } - { id: 14, class: _, preferred-register: '' } liveins: body: | ; CHECK-LABEL: name: legalize_phi_same_bb ; CHECK: bb.0: ; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000) ; CHECK: liveins: %w0 ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY %w0 ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0 ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 3 ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 1 ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 42 ; CHECK: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(ugt), [[COPY]](s32), [[C]] ; CHECK: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[ICMP]](s32) ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[C1]] ; CHECK: G_BRCOND [[TRUNC]](s1), %bb.1 ; CHECK: G_BR %bb.2 ; CHECK: bb.1: ; CHECK: successors: %bb.3(0x80000000) ; CHECK: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[C2]] ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[ADD1]](s32) ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[ADD1]](s32) ; CHECK: G_BR %bb.3 ; CHECK: bb.2: ; CHECK: successors: %bb.3(0x80000000) ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[C3]](s32) ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[ADD]](s32) ; CHECK: bb.3: ; CHECK: [[PHI:%[0-9]+]]:_(s16) = G_PHI [[TRUNC2]](s16), %bb.1, [[TRUNC4]](s16), %bb.2 ; CHECK: [[PHI1:%[0-9]+]]:_(s16) = G_PHI [[TRUNC1]](s16), %bb.1, [[TRUNC3]](s16), %bb.2 ; CHECK: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 255 ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[PHI]](s16) ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[ANYEXT]], [[C4]] ; CHECK: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 255 ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[PHI1]](s16) ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[ANYEXT1]], [[C5]] ; CHECK: [[ADD2:%[0-9]+]]:_(s32) = G_ADD [[C]]1, [[C]]2 ; CHECK: %w0 = COPY [[C]]3(s32) ; CHECK: RET_ReallyLR implicit %w0 bb.0: successors: %bb.1(0x40000000), %bb.2(0x40000000) liveins: %w0 ; Make sure that we correctly insert the new legalized G_PHI at the ; correct location (ie make sure G_PHIs are the first insts in the BB). %0(s32) = COPY %w0 %1(s32) = G_CONSTANT i32 0 %3(s32) = G_CONSTANT i32 3 %6(s32) = G_CONSTANT i32 1 %14(s8) = G_CONSTANT i8 42 %2(s1) = G_ICMP intpred(ugt), %0(s32), %1 %4(s32) = G_ADD %0, %3 %5(s8) = G_TRUNC %4(s32) G_BRCOND %2(s1), %bb.1 G_BR %bb.2 bb.1: successors: %bb.3(0x80000000) %7(s32) = G_ADD %0, %6 %8(s8) = G_TRUNC %7(s32) G_BR %bb.3 bb.2: successors: %bb.3(0x80000000) bb.3: %9(s8) = G_PHI %8(s8), %bb.1, %5(s8), %bb.2 %10(s8) = G_PHI %8(s8), %bb.1, %14(s8), %bb.2 %11(s32) = G_ZEXT %9(s8) %12(s32) = G_ZEXT %10(s8) %13(s32) = G_ADD %11, %12 %w0 = COPY %13(s32) RET_ReallyLR implicit %w0 ... --- name: legalize_phi_diff_bb alignment: 2 exposesReturnsTwice: false legalized: false regBankSelected: false selected: false tracksRegLiveness: true registers: - { id: 0, class: _, preferred-register: '' } - { id: 1, class: _, preferred-register: '' } - { id: 2, class: _, preferred-register: '' } - { id: 3, class: _, preferred-register: '' } - { id: 4, class: _, preferred-register: '' } - { id: 5, class: _, preferred-register: '' } - { id: 6, class: _, preferred-register: '' } - { id: 7, class: _, preferred-register: '' } - { id: 8, class: _, preferred-register: '' } - { id: 9, class: _, preferred-register: '' } - { id: 10, class: _, preferred-register: '' } - { id: 11, class: _, preferred-register: '' } - { id: 12, class: _, preferred-register: '' } - { id: 13, class: _, preferred-register: '' } - { id: 14, class: _, preferred-register: '' } - { id: 15, class: _, preferred-register: '' } liveins: body: | ; CHECK-LABEL: name: legalize_phi_diff_bb ; CHECK: bb.0: ; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000) ; CHECK: liveins: %w0, %w1 ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY %w0 ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0 ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 3 ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 1 ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 44 ; CHECK: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 43 ; CHECK: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(ugt), [[COPY]](s32), [[C]] ; CHECK: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[ICMP]](s32) ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[C1]] ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[ADD]](s32) ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[ADD]](s32) ; CHECK: G_BRCOND [[TRUNC]](s1), %bb.1 ; CHECK: G_BR %bb.2 ; CHECK: bb.1: ; CHECK: successors: %bb.2(0x40000000), %bb.1(0x40000000) ; CHECK: [[PHI:%[0-9]+]]:_(s16) = G_PHI [[TRUNC2]](s16), %bb.0, [[C]]2(s16), %bb.1 ; CHECK: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[PHI]](s16) ; CHECK: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 255 ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[PHI]](s16) ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[ANYEXT]], [[C5]] ; CHECK: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[AND]], [[C2]] ; CHECK: [[ICMP1:%[0-9]+]]:_(s32) = G_ICMP intpred(ugt), [[ADD1]](s32), [[C3]] ; CHECK: [[TRUNC4:%[0-9]+]]:_(s1) = G_TRUNC [[ICMP1]](s32) ; CHECK: [[COPY1:%[0-9]+]]:_(s16) = COPY [[PHI]](s16) ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[C4]](s32) ; CHECK: G_BRCOND [[TRUNC4]](s1), %bb.2 ; CHECK: G_BR %bb.1 ; CHECK: bb.2: ; CHECK: [[PHI1:%[0-9]+]]:_(s16) = G_PHI [[COPY1]](s16), %bb.1, [[TRUNC1]](s16), %bb.0 ; CHECK: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 255 ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[PHI1]](s16) ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[C]]8, [[C]]7 ; CHECK: %w0 = COPY [[AND1]](s32) ; CHECK: RET_ReallyLR implicit %w0 bb.0: successors: %bb.1(0x40000000), %bb.3(0x40000000) liveins: %w0, %w1 ; Make sure that we correctly legalize PHIs sharing common defs ; in different BBs. %0(s32) = COPY %w0 %1(s32) = COPY %w1 %2(s32) = G_CONSTANT i32 0 %4(s32) = G_CONSTANT i32 3 %9(s32) = G_CONSTANT i32 1 %11(s32) = G_CONSTANT i32 44 %15(s8) = G_CONSTANT i8 43 %3(s1) = G_ICMP intpred(ugt), %0(s32), %2 %5(s32) = G_ADD %0, %4 %6(s8) = G_TRUNC %5(s32) G_BRCOND %3(s1), %bb.1 G_BR %bb.3 bb.1: successors: %bb.3(0x40000000), %bb.1(0x40000000) %7(s8) = G_PHI %6(s8), %bb.0, %15(s8), %bb.1 %8(s32) = G_ZEXT %7(s8) %10(s32) = G_ADD %8, %9 %12(s1) = G_ICMP intpred(ugt), %10(s32), %11 G_BRCOND %12(s1), %bb.3 G_BR %bb.1 bb.3: %13(s8) = G_PHI %7(s8), %bb.1, %6(s8), %bb.0 %14(s32) = G_ZEXT %13(s8) %w0 = COPY %14(s32) RET_ReallyLR implicit %w0 ...