llvm-6502/test/CodeGen/X86/fp_load_fold.ll
Chris Lattner 1ce9e00f8b rename *.llx -> *.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49970 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 22:29:10 +00:00

41 lines
1.1 KiB
LLVM

; 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 = add 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 = mul 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 = sub 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 = sub 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
}