llvm/test/CodeGen/X86/fp_load_fold.ll
2009-09-08 23:54:48 +00:00

41 lines
1.1 KiB
LLVM

; 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
}