-; RUN: llvm-as < %s | llc -march=x86 | grep fldz
-; RUN: llvm-as < %s | llc -march=x86-64 | grep fld1
+; RUN: llc < %s -march=x86 | grep fldz
+; RUN: llc < %s -march=x86-64 | grep fld1
; This is basically this code on x86-64:
; _Complex long double test() { return 1.0; }
ret x86_fp80 %A, x86_fp80 %B
}
+
+;_test2:
+; fld1
+; fld %st(0)
+; ret
+define {x86_fp80, x86_fp80} @test2() {
+ %A = fpext double 1.0 to x86_fp80
+ ret x86_fp80 %A, x86_fp80 %A
+}
+
+; Uses both values.
+define void @call1(x86_fp80 *%P1, x86_fp80 *%P2) {
+ %a = call {x86_fp80,x86_fp80} @test()
+ %b = getresult {x86_fp80,x86_fp80} %a, 0
+ store x86_fp80 %b, x86_fp80* %P1
+
+ %c = getresult {x86_fp80,x86_fp80} %a, 1
+ store x86_fp80 %c, x86_fp80* %P2
+ ret void
+}
+
+; Uses both values, requires fxch
+define void @call2(x86_fp80 *%P1, x86_fp80 *%P2) {
+ %a = call {x86_fp80,x86_fp80} @test()
+ %b = getresult {x86_fp80,x86_fp80} %a, 1
+ store x86_fp80 %b, x86_fp80* %P1
+
+ %c = getresult {x86_fp80,x86_fp80} %a, 0
+ store x86_fp80 %c, x86_fp80* %P2
+ ret void
+}
+
+; Uses ST(0), ST(1) is dead but must be popped.
+define void @call3(x86_fp80 *%P1, x86_fp80 *%P2) {
+ %a = call {x86_fp80,x86_fp80} @test()
+ %b = getresult {x86_fp80,x86_fp80} %a, 0
+ store x86_fp80 %b, x86_fp80* %P1
+ ret void
+}
+
+; Uses ST(1), ST(0) is dead and must be popped.
+define void @call4(x86_fp80 *%P1, x86_fp80 *%P2) {
+ %a = call {x86_fp80,x86_fp80} @test()
+
+ %c = getresult {x86_fp80,x86_fp80} %a, 1
+ store x86_fp80 %c, x86_fp80* %P2
+ ret void
+}
+