File: fp-stack-ret.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 (40 lines) | stat: -rw-r--r-- 932 bytes parent folder | download | duplicates (14)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
; RUN: llc < %s -mtriple=i686-apple-darwin8 -mcpu=yonah | FileCheck %s

; These testcases shouldn't require loading into an XMM register then storing 
; to memory, then reloading into an FPStack reg.

; CHECK: test1
; CHECK: fldl
; CHECK-NEXT: ret
define double @test1(double *%P) {
        %A = load double, double* %P
        ret double %A
}

; fastcc should return a value
; CHECK: test2
; CHECK-NOT: xmm
; CHECK: ret
define fastcc double @test2(<2 x double> %A) {
	%B = extractelement <2 x double> %A, i32 0
	ret double %B
}

; CHECK: test3
; CHECK: sub{{.*}}%esp
; CHECK-NOT: xmm
define fastcc double @test3(<4 x float> %A) {
	%B = bitcast <4 x float> %A to <2 x double>
	%C = call fastcc double @test2(<2 x double> %B)
	ret double %C
}

; Clear the stack when not using a return value.
; CHECK: test4
; CHECK: call
; CHECK: fstp
; CHECK: ret
define void @test4(double *%P) {
  %A = call double @test1(double *%P)
  ret void
}