Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[X86] Fix LowerAsmOutputForConstraint.
Summary: Update Flag when generating cc output. Fixes PR40737. Reviewers: rnk, nickdesaulniers, craig.topper, spatel Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D58283 llvm-svn: 354163
- Loading branch information
1 parent
c1648f2
commit 7875841
Showing
6 changed files
with
29 additions
and
12 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,19 @@ | ||
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py | ||
; RUN: llc -mtriple=x86_64-unknown-linux-gnu %s -o - | FileCheck %s | ||
|
||
define i8 @_BitScanForward(i32* nocapture %Index, i32 %Mask) { | ||
; CHECK-LABEL: _BitScanForward: | ||
; CHECK: # %bb.0: # %entry | ||
; CHECK-NEXT: #APP | ||
; CHECK-NEXT: bsfl %esi, %ecx | ||
; CHECK-NEXT: #NO_APP | ||
; CHECK-NEXT: setne %al | ||
; CHECK-NEXT: movl %ecx, (%rdi) | ||
; CHECK-NEXT: retq | ||
entry: | ||
%0 = tail call { i8, i32 } asm "bsf$(l $2,$1 $| $1,$2$)", "={@ccnz},=r,r,~{dirflag},~{fpsr},~{flags}"(i32 %Mask) | ||
%asmresult = extractvalue { i8, i32 } %0, 0 | ||
%asmresult1 = extractvalue { i8, i32 } %0, 1 | ||
store i32 %asmresult1, i32* %Index, align 4 | ||
ret i8 %asmresult | ||
} |