# RUN: llc -mtriple=x86_64-linux-gnu -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=X64 # RUN: llc -mtriple=i386-linux-gnu -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=X32 --- | define i32 @test(i32 %a) { entry: %cmp = trunc i32 %a to i1 br i1 %cmp, label %true, label %false true: ; preds = %entry ret i32 0 false: ; preds = %entry ret i32 1 } ... --- name: test # CHECK-LABEL: name: test alignment: 16 legalized: true regBankSelected: true registers: - { id: 0, class: gpr, preferred-register: '' } - { id: 1, class: gpr, preferred-register: '' } - { id: 2, class: gpr, preferred-register: '' } - { id: 3, class: gpr, preferred-register: '' } # X64: %0:gr32 = COPY $edi # X32: %0:gr32_abcd = COPY $edi # CHECK-NEXT: %2:gr32 = MOV32r0 implicit-def $eflags # CHECK-NEXT: %3:gr32 = MOV32ri 1 # CHECK-NEXT: %1:gr8 = COPY %0.sub_8bit # CHECK-NEXT: TEST8ri %1, 1, implicit-def $eflags # CHECK-NEXT: JCC_1 %[[TRUE:bb.[0-9]+]], 5, implicit $eflags # CHECK-NEXT: JMP_1 %[[FALSE:bb.[0-9]+]] # CHECK: [[TRUE]].{{[a-zA-Z0-9]+}}: # CHECK-NEXT: $eax = COPY %2 # CHECK-NEXT: RET 0, implicit $eax # CHECK: [[FALSE]].{{[a-zA-Z0-9]+}}: # CHECK-NEXT: $eax = COPY %3 # CHECK-NEXT: RET 0, implicit $eax body: | bb.1.entry: successors: %bb.2(0x40000000), %bb.3(0x40000000) liveins: $edi %0(s32) = COPY $edi %2(s32) = G_CONSTANT i32 0 %3(s32) = G_CONSTANT i32 1 %1(s1) = G_TRUNC %0(s32) G_BRCOND %1(s1), %bb.2 G_BR %bb.3 bb.2.true: $eax = COPY %2(s32) RET 0, implicit $eax bb.3.false: $eax = COPY %3(s32) RET 0, implicit $eax ...