1 ;RUN: llc -mtriple=x86_64-unknown-unknown -filetype=asm -x86-asm-syntax=intel < %s | FileCheck %s --check-prefix=CHECK 2 ;PR34617 3 4 ;Compile it with: "clang -O1 -emit-llvm" 5 ;char X[4]; 6 ;volatile char* PX; 7 ;char Y[4]; 8 ;volatile char* PY; 9 ;char Z[4]; 10 ;volatile char* PZ; 11 ;char* test057(long long x) { 12 ; asm ("movq %1, %%rax;" 13 ; "movq %%rax, %0;" 14 ; "pushq $Y;" 15 ; "popq %%rcx;" 16 ; "movq %%rcx, PY;" 17 ; "movq $X, %%rdx;" 18 ; "movq %%rdx, PX;" 19 ; :"=r"(PZ) 20 ; :"p"(Z) 21 ; :"%rax", "%rcx", "%rdx" 22 ; ); 23 ; return (char*)PZ; 24 ;} 25 26 ; CHECK: mov rax, offset Z 27 ; CHECK: push offset Y 28 ; CHECK: pop rcx 29 ; CHECK: mov qword ptr [PY], rcx 30 ; CHECK: mov rdx, offset X 31 ; CHECK: mov qword ptr [PX], rdx 32 33 @PZ = common global i8* null, align 8 34 @Z = common global [4 x i8] zeroinitializer, align 1 35 @X = common global [4 x i8] zeroinitializer, align 1 36 @PX = common global i8* null, align 8 37 @Y = common global [4 x i8] zeroinitializer, align 1 38 @PY = common global i8* null, align 8 39 40 define i8* @test057(i64 %x) { 41 entry: 42 %x.addr = alloca i64, align 8 43 store i64 %x, i64* %x.addr, align 8 44 %0 = call i8* asm "movq $1, %rax;movq %rax, $0;pushq $$Y;popq %rcx;movq %rcx, PY;movq $$X, %rdx;movq %rdx, PX;", "=r,im,~{rax},~{rcx},~{rdx},~{dirflag},~{fpsr},~{flags}"(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @Z, i32 0, i32 0)) 45 store i8* %0, i8** @PZ, align 8 46 %1 = load i8*, i8** @PZ, align 8 47 ret i8* %1 48 } 49 50
