File: fast-isel-tailcall.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 (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
}