File: fast-isel-tailcall.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (14 lines) | stat: -rw-r--r-- 526 bytes parent folder | download | duplicates (14) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
; RUN: llc < %s -fast-isel -tailcallopt -mtriple=i686-- | FileCheck %s
; CHECK-NOT: add
; PR4154

; On x86, -tailcallopt changes the ABI so the caller shouldn't readjust
; the stack pointer after the call in this code.

define i32 @stub(i8* %t0) nounwind {
entry:
        %t1 = load i32, i32* inttoptr (i32 139708680 to i32*)         ; <i32> [#uses=1]
        %t2 = bitcast i8* %t0 to i32 (i32)*               ; <i32 (i32)*> [#uses=1]
        %t3 = call fastcc i32 %t2(i32 %t1)         ; <i32> [#uses=1]
        ret i32 %t3
}