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1; RUN: llc -mtriple=arm64ec-pc-windows-msvc < %s | FileCheck %s2 3define void @simple(ptr %g) {4; CHECK-LABEL: "#simple":5; CHECK: str x30, [sp, #-16]!6; CHECK-NEXT: .seh_save_reg_x x30, 167; CHECK-NEXT: .seh_endprologue8; CHECK-NEXT: adrp x8, __os_arm64x_check_icall9; CHECK-NEXT: adrp x10, $iexit_thunk$cdecl$v$v10; CHECK-NEXT: add x10, x10, :lo12:$iexit_thunk$cdecl$v$v11; CHECK-NEXT: ldr x8, [x8, :lo12:__os_arm64x_check_icall]12; CHECK-NEXT: mov x11, x013; CHECK-NEXT: blr x814; CHECK-NEXT: blr x1115; CHECK-NEXT: .seh_startepilogue16; CHECK-NEXT: ldr x30, [sp], #1617; CHECK-NEXT: .seh_save_reg_x x30, 1618; CHECK-NEXT: .seh_endepilogue19; CHECK-NEXT: ret20 21entry:22 call void %g()23 ret void24}25 26; Make sure the check for the security cookie doesn't use x9.27define void @stackguard(ptr %g) sspreq {28; CHECK-LABEL: "#stackguard":29; CHECK: adrp x8, __os_arm64x_check_icall30; CHECK-NEXT: ldr x8, [x8, :lo12:__os_arm64x_check_icall]31; CHECK-NEXT: blr x832; CHECK-NEXT: adrp x8, __security_cookie33; CHECK-NEXT: ldr x10, [sp, #8]34; CHECK-NEXT: ldr x8, [x8, :lo12:__security_cookie]35; CHECK-NEXT: cmp x8, x1036; CHECK-NEXT: b.ne .LBB1_237; CHECK-NEXT: // %bb.1:38; CHECK-NEXT: fmov d0, #1.0000000039; CHECK-NEXT: .seh_startepilogue40; CHECK-NEXT: ldr x30, [sp, #16]41; CHECK-NEXT: .seh_save_reg x30, 1642; CHECK-NEXT: add sp, sp, #3243; CHECK-NEXT: .seh_stackalloc 3244; CHECK-NEXT: .seh_endepilogue45; CHECK-NEXT: br x1146 47entry:48 %call = tail call double %g(double noundef 1.000000e+00)49 ret void50}51