summaryrefslogtreecommitdiff
path: root/test/CodeGen/X86/fp_load_fold.ll
blob: 655ad3df323868cfac93e511218876b4b4a01706 (plain)
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: llvm-as < %s | llc -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
}