mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-30 16:17:05 +00:00
b3ff6a88b6
This patch teaches fast-isel how to select a (V)CVTSI2SSrr for an integer to float conversion, and how to select a (V)CVTSI2SDrr for an integer to double conversion. Added test 'fast-isel-int-float-conversion.ll'. Differential Revision: http://reviews.llvm.org/D7698 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229589 91177308-0d34-0410-b5e6-96231b3b80d8
46 lines
1.2 KiB
LLVM
46 lines
1.2 KiB
LLVM
; RUN: llc -mtriple=x86_64-unknown-unknown -mcpu=generic -mattr=+sse2 -O0 --fast-isel-abort < %s | FileCheck %s --check-prefix=ALL --check-prefix=SSE2
|
|
; RUN: llc -mtriple=x86_64-unknown-unknown -mcpu=generic -mattr=+avx -O0 --fast-isel-abort < %s | FileCheck %s --check-prefix=ALL --check-prefix=AVX
|
|
|
|
|
|
define double @int_to_double_rr(i32 %a) {
|
|
; ALL-LABEL: int_to_double_rr:
|
|
; SSE2: cvtsi2sdl %edi, %xmm0
|
|
; AVX: vcvtsi2sdl %edi, %xmm0, %xmm0
|
|
; ALL-NEXT: ret
|
|
entry:
|
|
%0 = sitofp i32 %a to double
|
|
ret double %0
|
|
}
|
|
|
|
define double @int_to_double_rm(i32* %a) {
|
|
; ALL-LABEL: int_to_double_rm:
|
|
; SSE2: cvtsi2sdl (%rdi), %xmm0
|
|
; AVX: vcvtsi2sdl (%rdi), %xmm0, %xmm0
|
|
; ALL-NEXT: ret
|
|
entry:
|
|
%0 = load i32* %a
|
|
%1 = sitofp i32 %0 to double
|
|
ret double %1
|
|
}
|
|
|
|
define float @int_to_float_rr(i32 %a) {
|
|
; ALL-LABEL: int_to_float_rr:
|
|
; SSE2: cvtsi2ssl %edi, %xmm0
|
|
; AVX: vcvtsi2ssl %edi, %xmm0, %xmm0
|
|
; ALL-NEXT: ret
|
|
entry:
|
|
%0 = sitofp i32 %a to float
|
|
ret float %0
|
|
}
|
|
|
|
define float @int_to_float_rm(i32* %a) {
|
|
; ALL-LABEL: int_to_float_rm:
|
|
; SSE2: cvtsi2ssl (%rdi), %xmm0
|
|
; AVX: vcvtsi2ssl (%rdi), %xmm0, %xmm0
|
|
; ALL-NEXT: ret
|
|
entry:
|
|
%0 = load i32* %a
|
|
%1 = sitofp i32 %0 to float
|
|
ret float %1
|
|
}
|