File: fp_load_fold.ll

package info (click to toggle)
llvm-2.7 2.7-6
  • links: PTS
  • area: main
  • in suites: squeeze
  • size: 59,992 kB
  • ctags: 49,499
  • sloc: cpp: 373,792; ansic: 16,885; sh: 12,614; asm: 6,809; ada: 3,083; ml: 2,942; python: 2,671; perl: 2,404; makefile: 1,691; pascal: 1,235; exp: 399; objc: 291; lisp: 184; csh: 117; xml: 38; f90: 36
file content (40 lines) | stat: -rw-r--r-- 1,137 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
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
; RUN: llc < %s -march=x86 -x86-asm-syntax=intel | \
; RUN:   grep -i ST | not grep {fadd\\|fsub\\|fdiv\\|fmul}

; Test that the load of the memory location is folded into the operation.

define double @test_add(double %X, double* %P) {
	%Y = load double* %P		; <double> [#uses=1]
	%R = fadd double %X, %Y		; <double> [#uses=1]
	ret double %R
}

define double @test_mul(double %X, double* %P) {
	%Y = load double* %P		; <double> [#uses=1]
	%R = fmul double %X, %Y		; <double> [#uses=1]
	ret double %R
}

define double @test_sub(double %X, double* %P) {
	%Y = load double* %P		; <double> [#uses=1]
	%R = fsub double %X, %Y		; <double> [#uses=1]
	ret double %R
}

define double @test_subr(double %X, double* %P) {
	%Y = load double* %P		; <double> [#uses=1]
	%R = fsub double %Y, %X		; <double> [#uses=1]
	ret double %R
}

define double @test_div(double %X, double* %P) {
	%Y = load double* %P		; <double> [#uses=1]
	%R = fdiv double %X, %Y		; <double> [#uses=1]
	ret double %R
}

define double @test_divr(double %X, double* %P) {
	%Y = load double* %P		; <double> [#uses=1]
	%R = fdiv double %Y, %X		; <double> [#uses=1]
	ret double %R
}