Add support for sign-extending non-legal types in SelectSIToFP().

llvm-svn: 143603

1 files changed, 96 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/ARM/fast-isel-conversion.ll b/llvm/test/CodeGen/ARM/fast-isel-conversion.ll
new file mode 100644
index 00000000000..14666a83528
--- /dev/null
+++ b/llvm/test/CodeGen/ARM/fast-isel-conversion.ll
@@ -0,0 +1,96 @@
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-darwin | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-darwin | FileCheck %s --check-prefix=THUMB
+
+; Test sitofp
+
+define void @sitofp_single_i32(i32 %a, float %b) nounwind ssp {
+entry:
+; ARM: sitofp_single_i32
+; ARM: vmov s0, r0
+; ARM: vcvt.f32.s32 s0, s0
+; THUMB: sitofp_single_i32
+; THUMB: vmov s0, r0
+; THUMB: vcvt.f32.s32 s0, s0
+  %b.addr = alloca float, align 4
+  %conv = sitofp i32 %a to float
+  store float %conv, float* %b.addr, align 4
+  ret void
+}
+
+define void @sitofp_single_i16(i16 %a, float %b) nounwind ssp {
+entry:
+; ARM: sitofp_single_i16
+; ARM: sxth r0, r0
+; ARM: vmov s0, r0
+; ARM: vcvt.f32.s32 s0, s0
+; THUMB: sitofp_single_i16
+; THUMB: sxth r0, r0
+; THUMB: vmov s0, r0
+; THUMB: vcvt.f32.s32 s0, s0
+  %b.addr = alloca float, align 4
+  %conv = sitofp i16 %a to float
+  store float %conv, float* %b.addr, align 4
+  ret void
+}
+
+define void @sitofp_single_i8(i8 %a) nounwind ssp {
+entry:
+; ARM: sitofp_single_i8
+; ARM: sxtb r0, r0
+; ARM: vmov s0, r0
+; ARM: vcvt.f32.s32 s0, s0
+; THUMB: sitofp_single_i8
+; THUMB: sxtb r0, r0
+; THUMB: vmov s0, r0
+; THUMB: vcvt.f32.s32 s0, s0
+  %b.addr = alloca float, align 4
+  %conv = sitofp i8 %a to float
+  store float %conv, float* %b.addr, align 4
+  ret void
+}
+
+define void @sitofp_double_i32(i32 %a, double %b) nounwind ssp {
+entry:
+; ARM: sitofp_double_i32
+; ARM: vmov s0, r0
+; ARM: vcvt.f64.s32 d16, s0
+; THUMB: sitofp_double_i32
+; THUMB: vmov s0, r0
+; THUMB: vcvt.f64.s32 d16, s0
+  %b.addr = alloca double, align 8
+  %conv = sitofp i32 %a to double
+  store double %conv, double* %b.addr, align 8
+  ret void
+}
+
+define void @sitofp_double_i16(i16 %a, double %b) nounwind ssp {
+entry:
+; ARM: sitofp_double_i16
+; ARM: sxth r0, r0
+; ARM: vmov s0, r0
+; ARM: vcvt.f64.s32 d16, s0
+; THUMB: sitofp_double_i16
+; THUMB: sxth r0, r0
+; THUMB: vmov s0, r0
+; THUMB: vcvt.f64.s32 d16, s0
+  %b.addr = alloca double, align 8
+  %conv = sitofp i16 %a to double
+  store double %conv, double* %b.addr, align 8
+  ret void
+}
+
+define void @sitofp_double_i8(i8 %a, double %b) nounwind ssp {
+entry:
+; ARM: sitofp_double_i8
+; ARM: sxtb r0, r0
+; ARM: vmov s0, r0
+; ARM: vcvt.f64.s32 d16, s0
+; THUMB: sitofp_double_i8
+; THUMB: sxtb r0, r0
+; THUMB: vmov s0, r0
+; THUMB: vcvt.f64.s32 d16, s0
+  %b.addr = alloca double, align 8
+  %conv = sitofp i8 %a to double
+  store double %conv, double* %b.addr, align 8
+  ret void
+}