1 files changed, 41 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fp_load_fold.llx b/test/CodeGen/X86/fp_load_fold.llx
new file mode 100644
index 0000000..91f41f6
--- /dev/null
+++ b/test/CodeGen/X86/fp_load_fold.llx
@@ -0,0 +1,41 @@
+; RUN: llvm-upgrade < %s | llvm-as | 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.
+
+
+double %test_add(double %X, double *%P) {
+	%Y = load double* %P
+        %R = add double %X, %Y
+        ret double %R
+}
+
+double %test_mul(double %X, double *%P) {
+	%Y = load double* %P
+        %R = mul double %X, %Y
+        ret double %R
+}
+
+double %test_sub(double %X, double *%P) {
+	%Y = load double* %P
+        %R = sub double %X, %Y
+        ret double %R
+}
+
+double %test_subr(double %X, double *%P) {
+	%Y = load double* %P
+        %R = sub double %Y, %X
+        ret double %R
+}
+
+double %test_div(double %X, double *%P) {
+	%Y = load double* %P
+        %R = div double %X, %Y
+        ret double %R
+}
+
+double %test_divr(double %X, double *%P) {
+	%Y = load double* %P
+        %R = div double %Y, %X
+        ret double %R
+}