File: pr11415.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (22 lines) | stat: -rw-r--r-- 637 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
; RUN: llc -mtriple=x86_64-pc-linux %s -o - -regalloc=fast -optimize-regalloc=0 | FileCheck %s

; We used to consider the early clobber in the second asm statement as
; defining %0 before it was read. This caused us to omit the
; movq	-8(%rsp), %rdx

; CHECK: 	#APP
; CHECK-NEXT:	#NO_APP
; CHECK-NEXT:	movq	%rcx, %rax
; CHECK-NEXT:	movq	%rax, -8(%rsp)
; CHECK-NEXT:	movq	-8(%rsp), %rdx
; CHECK-NEXT:	#APP
; CHECK-NEXT:	#NO_APP
; CHECK-NEXT:	movq	%rdx, %rax
; CHECK-NEXT:	ret

define i64 @foo() {
entry:
  %0 = tail call i64 asm "", "={cx}"() nounwind
  %1 = tail call i64 asm "", "=&r,0,r,~{rax}"(i64 %0, i64 %0) nounwind
  ret i64 %1
}