Patch number 2 for mips16/32 floating point interoperability stubs.

This creates stubs that help Mips32 functions call Mips16 
functions which have floating point parameters that are normally passed
in floating point registers.
 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181972 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 294 insertions, 0 deletions

diff --git a/test/CodeGen/Mips/hf16call32_body.ll b/test/CodeGen/Mips/hf16call32_body.ll
new file mode 100644
index 0000000000..793b771ac4
--- /dev/null
+++ b/test/CodeGen/Mips/hf16call32_body.ll
@@ -0,0 +1,294 @@
+; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static < %s | FileCheck %s -check-prefix=stel
+
+@x = external global float
+@xd = external global double
+@y = external global float
+@yd = external global double
+@ret_sf = external global float
+@ret_df = external global double
+@ret_sc = external global { float, float }
+@ret_dc = external global { double, double }
+
+; Function Attrs: nounwind
+define void @v_sf(float %p) #0 {
+entry:
+  %p.addr = alloca float, align 4
+  store float %p, float* %p.addr, align 4
+  %0 = load float* %p.addr, align 4
+  store float %0, float* @x, align 4
+  ret void
+}
+; stel: .section	.mips16.fn.v_sf,"ax",@progbits
+; stel:	.ent	__fn_stub_v_sf
+; stel:		la $25, v_sf
+; stel:		mfc1 $4,$f12
+; stel:		jr $25
+; stel:		__fn_local_v_sf = v_sf
+; stel:	.end	__fn_stub_v_sf
+
+declare i32 @printf(i8*, ...) #1
+
+; Function Attrs: nounwind
+define void @v_df(double %p) #0 {
+entry:
+  %p.addr = alloca double, align 8
+  store double %p, double* %p.addr, align 8
+  %0 = load double* %p.addr, align 8
+  store double %0, double* @xd, align 8
+  ret void
+}
+
+; stel: .section	.mips16.fn.v_df,"ax",@progbits
+; stel:	.ent	__fn_stub_v_df
+; stel:		la $25, v_df
+; stel:		mfc1 $4,$f12
+; stel:		mfc1 $5,$f13
+; stel:		jr $25
+; stel:		__fn_local_v_df = v_df
+; stel:	.end	__fn_stub_v_df
+
+; Function Attrs: nounwind
+define void @v_sf_sf(float %p1, float %p2) #0 {
+entry:
+  %p1.addr = alloca float, align 4
+  %p2.addr = alloca float, align 4
+  store float %p1, float* %p1.addr, align 4
+  store float %p2, float* %p2.addr, align 4
+  %0 = load float* %p1.addr, align 4
+  store float %0, float* @x, align 4
+  %1 = load float* %p2.addr, align 4
+  store float %1, float* @y, align 4
+  ret void
+}
+
+; stel: .section	.mips16.fn.v_sf_sf,"ax",@progbits
+; stel:	.ent	__fn_stub_v_sf_sf
+; stel:		la $25, v_sf_sf
+; stel:		mfc1 $4,$f12
+; stel:		mfc1 $5,$f14
+; stel:		jr $25
+; stel:		__fn_local_v_sf_sf = v_sf_sf
+; stel:	.end	__fn_stub_v_sf_sf
+
+; Function Attrs: nounwind
+define void @v_sf_df(float %p1, double %p2) #0 {
+entry:
+  %p1.addr = alloca float, align 4
+  %p2.addr = alloca double, align 8
+  store float %p1, float* %p1.addr, align 4
+  store double %p2, double* %p2.addr, align 8
+  %0 = load float* %p1.addr, align 4
+  store float %0, float* @x, align 4
+  %1 = load double* %p2.addr, align 8
+  store double %1, double* @yd, align 8
+  ret void
+}
+
+; stel: .section	.mips16.fn.v_sf_df,"ax",@progbits
+; stel:	.ent	__fn_stub_v_sf_df
+; stel:		la $25, v_sf_df
+; stel:		mfc1 $4,$f12
+; stel:		mfc1 $6,$f14
+; stel:		mfc1 $7,$f15
+; stel:		jr $25
+; stel:		__fn_local_v_sf_df = v_sf_df
+; stel:	.end	__fn_stub_v_sf_df
+
+; Function Attrs: nounwind
+define void @v_df_sf(double %p1, float %p2) #0 {
+entry:
+  %p1.addr = alloca double, align 8
+  %p2.addr = alloca float, align 4
+  store double %p1, double* %p1.addr, align 8
+  store float %p2, float* %p2.addr, align 4
+  %0 = load double* %p1.addr, align 8
+  store double %0, double* @xd, align 8
+  %1 = load float* %p2.addr, align 4
+  store float %1, float* @y, align 4
+  ret void
+}
+
+; stel: .section	.mips16.fn.v_df_sf,"ax",@progbits
+; stel:	.ent	__fn_stub_v_df_sf
+; stel:		la $25, v_df_sf
+; stel:		mfc1 $4,$f12
+; stel:		mfc1 $5,$f13
+; stel:		mfc1 $6,$f14
+; stel:		jr $25
+; stel:		__fn_local_v_df_sf = v_df_sf
+; stel:	.end	__fn_stub_v_df_sf
+
+; Function Attrs: nounwind
+define void @v_df_df(double %p1, double %p2) #0 {
+entry:
+  %p1.addr = alloca double, align 8
+  %p2.addr = alloca double, align 8
+  store double %p1, double* %p1.addr, align 8
+  store double %p2, double* %p2.addr, align 8
+  %0 = load double* %p1.addr, align 8
+  store double %0, double* @xd, align 8
+  %1 = load double* %p2.addr, align 8
+  store double %1, double* @yd, align 8
+  ret void
+}
+
+; stel: .section	.mips16.fn.v_df_df,"ax",@progbits
+; stel:	.ent	__fn_stub_v_df_df
+; stel:		la $25, v_df_df
+; stel:		mfc1 $4,$f12
+; stel:		mfc1 $5,$f13
+; stel:		mfc1 $6,$f14
+; stel:		mfc1 $7,$f15
+; stel:		jr $25
+; stel:		__fn_local_v_df_df = v_df_df
+; stel:	.end	__fn_stub_v_df_df
+
+; Function Attrs: nounwind
+define float @sf_v() #0 {
+entry:
+  %0 = load float* @ret_sf, align 4
+  ret float %0
+}
+
+; Function Attrs: nounwind
+define float @sf_sf(float %p) #0 {
+entry:
+  %p.addr = alloca float, align 4
+  store float %p, float* %p.addr, align 4
+  %0 = load float* %p.addr, align 4
+  store float %0, float* @x, align 4
+  %1 = load float* @ret_sf, align 4
+  ret float %1
+}
+
+
+; stel: .section	.mips16.fn.sf_sf,"ax",@progbits
+; stel:	.ent	__fn_stub_sf_sf
+; stel:		la $25, sf_sf
+; stel:		mfc1 $4,$f12
+; stel:		jr $25
+; stel:		__fn_local_sf_sf = sf_sf
+; stel:	.end	__fn_stub_sf_sf
+
+
+; Function Attrs: nounwind
+define float @sf_df(double %p) #0 {
+entry:
+  %p.addr = alloca double, align 8
+  store double %p, double* %p.addr, align 8
+  %0 = load double* %p.addr, align 8
+  store double %0, double* @xd, align 8
+  %1 = load float* @ret_sf, align 4
+  ret float %1
+}
+
+; stel: .section	.mips16.fn.sf_df,"ax",@progbits
+; stel:	.ent	__fn_stub_sf_df
+; stel:		la $25, sf_df
+; stel:		mfc1 $4,$f12
+; stel:		mfc1 $5,$f13
+; stel:		jr $25
+; stel:		__fn_local_sf_df = sf_df
+; stel:	.end	__fn_stub_sf_df
+
+; Function Attrs: nounwind
+define float @sf_sf_sf(float %p1, float %p2) #0 {
+entry:
+  %p1.addr = alloca float, align 4
+  %p2.addr = alloca float, align 4
+  store float %p1, float* %p1.addr, align 4
+  store float %p2, float* %p2.addr, align 4
+  %0 = load float* %p1.addr, align 4
+  store float %0, float* @x, align 4
+  %1 = load float* %p2.addr, align 4
+  store float %1, float* @y, align 4
+  %2 = load float* @ret_sf, align 4
+  ret float %2
+}
+
+; stel: .section	.mips16.fn.sf_sf_sf,"ax",@progbits
+; stel:	.ent	__fn_stub_sf_sf_sf
+; stel:		la $25, sf_sf_sf
+; stel:		mfc1 $4,$f12
+; stel:		mfc1 $5,$f14
+; stel:		jr $25
+; stel:		__fn_local_sf_sf_sf = sf_sf_sf
+; stel:	.end	__fn_stub_sf_sf_sf
+
+; Function Attrs: nounwind
+define float @sf_sf_df(float %p1, double %p2) #0 {
+entry:
+  %p1.addr = alloca float, align 4
+  %p2.addr = alloca double, align 8
+  store float %p1, float* %p1.addr, align 4
+  store double %p2, double* %p2.addr, align 8
+  %0 = load float* %p1.addr, align 4
+  store float %0, float* @x, align 4
+  %1 = load double* %p2.addr, align 8
+  store double %1, double* @yd, align 8
+  %2 = load float* @ret_sf, align 4
+  ret float %2
+}
+
+; stel: .section	.mips16.fn.sf_sf_df,"ax",@progbits
+; stel:	.ent	__fn_stub_sf_sf_df
+; stel:		la $25, sf_sf_df
+; stel:		mfc1 $4,$f12
+; stel:		mfc1 $6,$f14
+; stel:		mfc1 $7,$f15
+; stel:		jr $25
+; stel:		__fn_local_sf_sf_df = sf_sf_df
+; stel:	.end	__fn_stub_sf_sf_df
+
+; Function Attrs: nounwind
+define float @sf_df_sf(double %p1, float %p2) #0 {
+entry:
+  %p1.addr = alloca double, align 8
+  %p2.addr = alloca float, align 4
+  store double %p1, double* %p1.addr, align 8
+  store float %p2, float* %p2.addr, align 4
+  %0 = load double* %p1.addr, align 8
+  store double %0, double* @xd, align 8
+  %1 = load float* %p2.addr, align 4
+  store float %1, float* @y, align 4
+  %2 = load float* @ret_sf, align 4
+  ret float %2
+}
+
+; stel: .section	.mips16.fn.sf_df_sf,"ax",@progbits
+; stel:	.ent	__fn_stub_sf_df_sf
+; stel:		la $25, sf_df_sf
+; stel:		mfc1 $4,$f12
+; stel:		mfc1 $5,$f13
+; stel:		mfc1 $6,$f14
+; stel:		jr $25
+; stel:		__fn_local_sf_df_sf = sf_df_sf
+; stel:	.end	__fn_stub_sf_df_sf
+
+; Function Attrs: nounwind
+define float @sf_df_df(double %p1, double %p2) #0 {
+entry:
+  %p1.addr = alloca double, align 8
+  %p2.addr = alloca double, align 8
+  store double %p1, double* %p1.addr, align 8
+  store double %p2, double* %p2.addr, align 8
+  %0 = load double* %p1.addr, align 8
+  store double %0, double* @xd, align 8
+  %1 = load double* %p2.addr, align 8
+  store double %1, double* @yd, align 8
+  %2 = load float* @ret_sf, align 4
+  ret float %2
+}
+
+; stel: .section	.mips16.fn.sf_df_df,"ax",@progbits
+; stel:	.ent	__fn_stub_sf_df_df
+; stel:		la $25, sf_df_df
+; stel:		mfc1 $4,$f12
+; stel:		mfc1 $5,$f13
+; stel:		mfc1 $6,$f14
+; stel:		mfc1 $7,$f15
+; stel:		jr $25
+; stel:		__fn_local_sf_df_df = sf_df_df
+; stel:	.end	__fn_stub_sf_df_df
+
+attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }