; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3 ; RUN: llc < %s -mtriple=thumbv6m | FileCheck %s ; RUN: llc < %s -mtriple=thumbv6m -mattr=+execute-only | FileCheck %s -check-prefix=V6M ; RUN: llc < %s -mtriple=thumbv8m.base -mattr=+execute-only | FileCheck %s -check-prefix=V8MBASE define dso_local i32 @main() #0 { ; CHECK-LABEL: main: ; CHECK: @ %bb.0: @ %entry ; CHECK-NEXT: push {r7, lr} ; CHECK-NEXT: sub sp, #24 ; CHECK-NEXT: movs r0, #0 ; CHECK-NEXT: str r0, [sp, #4] ; CHECK-NEXT: ldr r0, .LCPI0_0 ; CHECK-NEXT: ldr r0, [r0] ; CHECK-NEXT: str r0, [sp, #20] ; CHECK-NEXT: add r0, sp, #8 ; CHECK-NEXT: ldrb r0, [r0] ; CHECK-NEXT: ldr r1, [sp, #20] ; CHECK-NEXT: ldr r2, .LCPI0_0 ; CHECK-NEXT: ldr r2, [r2] ; CHECK-NEXT: cmp r2, r1 ; CHECK-NEXT: bne .LBB0_2 ; CHECK-NEXT: @ %bb.1: @ %entry ; CHECK-NEXT: add sp, #24 ; CHECK-NEXT: pop {r7, pc} ; CHECK-NEXT: .LBB0_2: @ %entry ; CHECK-NEXT: bl __stack_chk_fail ; CHECK-NEXT: .p2align 2 ; CHECK-NEXT: @ %bb.3: ; CHECK-NEXT: .LCPI0_0: ; CHECK-NEXT: .long __stack_chk_guard ; ; V6M-LABEL: main: ; V6M: @ %bb.0: @ %entry ; V6M-NEXT: push {r7, lr} ; V6M-NEXT: sub sp, # ; V6M-NEXT: movs r0, #0 ; V6M-NEXT: str r0, [sp, # ; V6M-NEXT: mrs r12, apsr ; V6M-NEXT: movs r0, :upper8_15:__stack_chk_guard ; V6M-NEXT: lsls r0, r0, #8 ; V6M-NEXT: adds r0, :upper0_7:__stack_chk_guard ; V6M-NEXT: lsls r0, r0, #8 ; V6M-NEXT: adds r0, :lower8_15:__stack_chk_guard ; V6M-NEXT: lsls r0, r0, #8 ; V6M-NEXT: adds r0, :lower0_7:__stack_chk_guard ; V6M-NEXT: msr apsr, r12 ; V6M-NEXT: ldr r0, [r0] ; V6M-NEXT: str r0, [sp, # ; V6M-NEXT: add r0, sp, # ; V6M-NEXT: ldrb r0, [r0] ; V6M-NEXT: ldr r1, [sp, # ; V6M-NEXT: mrs r12, apsr ; V6M-NEXT: movs r2, :upper8_15:__stack_chk_guard ; V6M-NEXT: lsls r2, r2, #8 ; V6M-NEXT: adds r2, :upper0_7:__stack_chk_guard ; V6M-NEXT: lsls r2, r2, #8 ; V6M-NEXT: adds r2, :lower8_15:__stack_chk_guard ; V6M-NEXT: lsls r2, r2, #8 ; V6M-NEXT: adds r2, :lower0_7:__stack_chk_guard ; V6M-NEXT: msr apsr, r12 ; V6M-NEXT: ldr r2, [r2] ; V6M-NEXT: cmp r2, r1 ; V6M-NEXT: bne .LBB0_2 ; V6M-NEXT: @ %bb.1: @ %entry ; V6M-NEXT: add sp, # ; V6M-NEXT: pop {r7, pc} ; V6M-NEXT: .LBB0_2: @ %entry ; V6M-NEXT: bl __stack_chk_fail ; ; V8MBASE-LABEL: main: ; V8MBASE: @ %bb.0: @ %entry ; V8MBASE-NEXT: push {r7, lr} ; V8MBASE-NEXT: sub sp, #24 ; V8MBASE-NEXT: movs r0, #0 ; V8MBASE-NEXT: str r0, [sp, #4] ; V8MBASE-NEXT: movw r0, :lower16:__stack_chk_guard ; V8MBASE-NEXT: movt r0, :upper16:__stack_chk_guard ; V8MBASE-NEXT: ldr r0, [r0] ; V8MBASE-NEXT: str r0, [sp, #20] ; V8MBASE-NEXT: add r0, sp, #8 ; V8MBASE-NEXT: ldrb r0, [r0] ; V8MBASE-NEXT: ldr r1, [sp, #20] ; V8MBASE-NEXT: movw r2, :lower16:__stack_chk_guard ; V8MBASE-NEXT: movt r2, :upper16:__stack_chk_guard ; V8MBASE-NEXT: ldr r2, [r2] ; V8MBASE-NEXT: cmp r2, r1 ; V8MBASE-NEXT: bne .LBB0_2 ; V8MBASE-NEXT: @ %bb.1: @ %entry ; V8MBASE-NEXT: add sp, #24 ; V8MBASE-NEXT: pop {r7, pc} ; V8MBASE-NEXT: .LBB0_2: @ %entry ; V8MBASE-NEXT: bl __stack_chk_fail entry: %retval = alloca i32, align 4 %buffer = alloca [9 x i8], align 1 store i32 0, ptr %retval, align 4 %arrayidx = getelementptr inbounds [9 x i8], ptr %buffer, i32 0, i32 0 %0 = load i8, ptr %arrayidx, align 1 %conv = zext i8 %0 to i32 ret i32 %conv } @aa = hidden local_unnamed_addr global i32 0, align 4 @bb = hidden local_unnamed_addr global i64 0, align 8 define dso_local i64 @cc() local_unnamed_addr #1 { ; V6M-LABEL: cc: ; V6M: @ %bb.0: @ %entry ; V6M-NEXT: push {r4, r5, r7, lr} ; V6M-NEXT: sub sp, #8 ; V6M-NEXT: movs r0, #1 ; V6M-NEXT: lsls r3, r0, #31 ; V6M-NEXT: movs r0, :upper8_15:aa ; V6M-NEXT: lsls r0, r0, #8 ; V6M-NEXT: adds r0, :upper0_7:aa ; V6M-NEXT: lsls r0, r0, #8 ; V6M-NEXT: adds r0, :lower8_15:aa ; V6M-NEXT: lsls r0, r0, #8 ; V6M-NEXT: adds r0, :lower0_7:aa ; V6M-NEXT: ldr r2, [r0] ; V6M-NEXT: asrs r4, r2, #31 ; V6M-NEXT: eors r3, r4 ; V6M-NEXT: movs r0, :upper8_15:bb ; V6M-NEXT: lsls r0, r0, #8 ; V6M-NEXT: adds r0, :upper0_7:bb ; V6M-NEXT: lsls r0, r0, #8 ; V6M-NEXT: adds r0, :lower8_15:bb ; V6M-NEXT: lsls r0, r0, #8 ; V6M-NEXT: adds r0, :lower0_7:bb ; V6M-NEXT: ldm r0!, {r1, r5} ; V6M-NEXT: subs r0, r2, r1 ; V6M-NEXT: sbcs r3, r5 ; V6M-NEXT: subs r0, r2, r1 ; V6M-NEXT: mrs r12, apsr ; V6M-NEXT: movs r1, :upper8_15:__stack_chk_guard ; V6M-NEXT: lsls r1, r1, #8 ; V6M-NEXT: adds r1, :upper0_7:__stack_chk_guard ; V6M-NEXT: lsls r1, r1, #8 ; V6M-NEXT: adds r1, :lower8_15:__stack_chk_guard ; V6M-NEXT: lsls r1, r1, #8 ; V6M-NEXT: adds r1, :lower0_7:__stack_chk_guard ; V6M-NEXT: msr apsr, r12 ; V6M-NEXT: ldr r1, [r1] ; V6M-NEXT: str r1, [sp, #4] ; V6M-NEXT: mov r1, r4 ; V6M-NEXT: sbcs r1, r5 ; V6M-NEXT: ands r3, r4 ; V6M-NEXT: ands r2, r0 ; V6M-NEXT: mov r4, r2 ; V6M-NEXT: orrs r4, r3 ; V6M-NEXT: beq .LBB1_2 ; V6M-NEXT: @ %bb.1: @ %entry ; V6M-NEXT: mov r1, r3 ; V6M-NEXT: .LBB1_2: @ %entry ; V6M-NEXT: cmp r4, #0 ; V6M-NEXT: beq .LBB1_4 ; V6M-NEXT: @ %bb.3: @ %entry ; V6M-NEXT: mov r0, r2 ; V6M-NEXT: .LBB1_4: @ %entry ; V6M-NEXT: ldr r2, [sp, #4] ; V6M-NEXT: mrs r12, apsr ; V6M-NEXT: movs r3, :upper8_15:__stack_chk_guard ; V6M-NEXT: lsls r3, r3, #8 ; V6M-NEXT: adds r3, :upper0_7:__stack_chk_guard ; V6M-NEXT: lsls r3, r3, #8 ; V6M-NEXT: adds r3, :lower8_15:__stack_chk_guard ; V6M-NEXT: lsls r3, r3, #8 ; V6M-NEXT: adds r3, :lower0_7:__stack_chk_guard ; V6M-NEXT: msr apsr, r12 ; V6M-NEXT: ldr r3, [r3] ; V6M-NEXT: cmp r3, r2 ; V6M-NEXT: bne .LBB1_6 ; V6M-NEXT: @ %bb.5: @ %entry ; V6M-NEXT: add sp, #8 ; V6M-NEXT: pop {r4, r5, r7, pc} ; V6M-NEXT: .LBB1_6: @ %entry ; V6M-NEXT: bl __stack_chk_fail entry: %0 = load i32, ptr @aa, align 4 %conv = sext i32 %0 to i64 %xor = xor i64 %conv, -9223372036854775808 %1 = load i64, ptr @bb, align 8 %sub = sub nsw i64 %xor, %1 %and = and i64 %sub, %conv %tobool.not = icmp eq i64 %and, 0 %sub3 = sub nsw i64 %conv, %1 %spec.select = select i1 %tobool.not, i64 %sub3, i64 %and ret i64 %spec.select } attributes #0 = { ssp "stack-protector-buffer-size"="8" } attributes #1 = { sspreq }