1 ; RUN: llc < %s -march=x86 | FileCheck %s 2 ; RUN: llc < %s -march=x86 -regalloc=fast -optimize-regalloc=0 | FileCheck %s 3 4 ; %0 must not be put in EAX or EDX. 5 ; In the first asm, $0 and $2 must not be put in EAX. 6 ; CHECK: InlineAsm Start 7 ; CHECK-NOT: movl %eax, %eax 8 ; CHECK-NOT: movl (%eax), %eax 9 ; CHECK: InlineAsm End 10 ; In the second asm, $0 and $2 must not be put in EDX. 11 ; CHECK: InlineAsm Start 12 ; CHECK-NOT: movl %edx, %edx 13 ; CHECK-NOT: movl (%edx), %edx 14 ; CHECK: InlineAsm End 15 16 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" 17 target triple = "i386-apple-darwin8" 18 @x = common global i32 0 19 20 define i32 @aci(i32* %pw) nounwind { 21 entry: 22 %0 = load i32* @x, align 4 23 %asmtmp = tail call { i32, i32 } asm "movl $0, %eax\0A\090:\0A\09test %eax, %eax\0A\09je 1f\0A\09movl %eax, $2\0A\09incl $2\0A\09lock\0A\09cmpxchgl $2, $0\0A\09jne 0b\0A\091:", "=*m,=&{ax},=&r,*m,~{dirflag},~{fpsr},~{flags},~{memory},~{cc}"(i32* %pw, i32* %pw) nounwind 24 %asmtmp2 = tail call { i32, i32 } asm "movl $0, %edx\0A\090:\0A\09test %edx, %edx\0A\09je 1f\0A\09movl %edx, $2\0A\09incl $2\0A\09lock\0A\09cmpxchgl $2, $0\0A\09jne 0b\0A\091:", "=*m,=&{dx},=&r,*m,~{dirflag},~{fpsr},~{flags},~{memory},~{cc}"(i32* %pw, i32* %pw) nounwind 25 %asmresult2 = extractvalue { i32, i32 } %asmtmp, 0 26 %asmresult3 = extractvalue { i32, i32 } %asmtmp2, 0 27 %1 = add i32 %asmresult2, %asmresult3 28 %2 = add i32 %0, %1 29 ret i32 %2 30 } 31
