llvm-6502/test/CodeGen/X86/fast-isel-sse12-fptoint.ll
Juergen Ributzka e431884ed7 [FastISel][X86] Add support for cvttss2si/cvttsd2si intrinsics.
This adds support for the cvttss2si/cvttsd2si intrinsics. Preceding
insertelement instructions are folded into the conversion instruction (if
possible).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210870 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-13 02:21:58 +00:00

55 lines
2.1 KiB
LLVM

; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=-avx,+sse2 -fast-isel -fast-isel-abort | FileCheck %s --check-prefix=SSE
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=-avx2,+avx -fast-isel -fast-isel-abort | FileCheck %s --check-prefix=AVX
define i32 @cvt_test1(float %a) {
; SSE-LABEL: cvt_test1
; SSE: cvttss2si %xmm0, %eax
; AVX-LABEL: cvt_test1
; AVX: vcvttss2si %xmm0, %eax
%1 = insertelement <4 x float> undef, float %a, i32 0
%2 = insertelement <4 x float> %1, float 0.000000e+00, i32 1
%3 = insertelement <4 x float> %2, float 0.000000e+00, i32 2
%4 = insertelement <4 x float> %3, float 0.000000e+00, i32 3
%5 = call i32 @llvm.x86.sse.cvttss2si(<4 x float> %4)
ret i32 %5
}
declare i32 @llvm.x86.sse.cvttss2si(<4 x float>) nounwind readnone
define i64 @cvt_test2(float %a) {
; SSE-LABEL: cvt_test2
; SSE: cvttss2si %xmm0, %rax
; AVX-LABEL: cvt_test2
; AVX: vcvttss2si %xmm0, %rax
%1 = insertelement <4 x float> undef, float %a, i32 0
%2 = insertelement <4 x float> %1, float 0.000000e+00, i32 1
%3 = insertelement <4 x float> %2, float 0.000000e+00, i32 2
%4 = insertelement <4 x float> %3, float 0.000000e+00, i32 3
%5 = call i64 @llvm.x86.sse.cvttss2si64(<4 x float> %4)
ret i64 %5
}
declare i64 @llvm.x86.sse.cvttss2si64(<4 x float>) nounwind readnone
define i32 @cvt_test3(double %a) {
; SSE-LABEL: cvt_test3
; SSE: cvttsd2si %xmm0, %eax
; AVX-LABEL: cvt_test3
; AVX: vcvttsd2si %xmm0, %eax
%1 = insertelement <2 x double> undef, double %a, i32 0
%2 = insertelement <2 x double> %1, double 0.000000e+00, i32 1
%3 = call i32 @llvm.x86.sse2.cvttsd2si(<2 x double> %2)
ret i32 %3
}
declare i32 @llvm.x86.sse2.cvttsd2si(<2 x double>) nounwind readnone
define i64 @cvt_test4(double %a) {
; SSE-LABEL: cvt_test4
; SSE: cvttsd2si %xmm0, %rax
; AVX-LABEL: cvt_test4
; AVX: vcvttsd2si %xmm0, %rax
%1 = insertelement <2 x double> undef, double %a, i32 0
%2 = insertelement <2 x double> %1, double 0.000000e+00, i32 1
%3 = call i64 @llvm.x86.sse2.cvttsd2si64(<2 x double> %2)
ret i64 %3
}
declare i64 @llvm.x86.sse2.cvttsd2si64(<2 x double>) nounwind readnone