1 ; RUN: llc -regalloc=fast < %s | FileCheck %s 2 ; PR7382 3 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" 4 target triple = "x86_64-unknown-linux-gnu" 5 6 @.str = private constant [23 x i8] c"This should be -1: %d\0A\00" ; <[23 x i8]*> [#uses=1] 7 8 define i32 @main() { 9 entry: 10 %retval = alloca i32, align 4 ; <i32*> [#uses=3] 11 %v = alloca i32, align 4 ; <i32*> [#uses=3] 12 store i32 0, i32* %retval 13 %zero = load i32* %retval 14 ; The earlyclobber register EC0 should not be spilled before the inline asm. 15 ; Yes, check-not can refer to FileCheck variables defined in the future. 16 ; CHECK-NOT: [[EC0]]{{.*}}(%rsp) 17 ; CHECK: bsr {{[^,]*}}, [[EC0:%...]] 18 %0 = call i32 asm "bsr $1, $0\0A\09cmovz $2, $0", "=&r,ro,r,~{cc},~{dirflag},~{fpsr},~{flags}"(i32 %zero, i32 -1) nounwind, !srcloc !0 ; <i32> [#uses=1] 19 store i32 %0, i32* %v 20 %tmp = load i32* %v ; <i32> [#uses=1] 21 %call1 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([23 x i8]* @.str, i32 0, i32 0), i32 %tmp) ; <i32> [#uses=0] 22 store i32 0, i32* %retval 23 %1 = load i32* %retval ; <i32> [#uses=1] 24 ret i32 %0 25 } 26 27 declare i32 @printf(i8*, ...) 28 29 !0 = metadata !{i32 191} 30
