mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 20:29:48 +00:00
17c8fefc9f
Abs/neg folding has moved out of foldOperands and into the instruction selection phase using complex patterns. As a consequence of this change, we now prefer to select the 64-bit encoding for most instructions and the modifier operands have been dropped from integer VOP3 instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214467 91177308-0d34-0410-b5e6-96231b3b80d8
51 lines
1.5 KiB
LLVM
51 lines
1.5 KiB
LLVM
; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs< %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
|
|
|
|
; Test that we correctly commute a sub instruction
|
|
; FUNC-LABEL: @sub_rev
|
|
; SI-NOT: V_SUB_I32_e32 v{{[0-9]+}}, s
|
|
; SI: V_SUBREV_I32_e32 v{{[0-9]+}}, s
|
|
|
|
; ModuleID = 'vop-shrink.ll'
|
|
|
|
define void @sub_rev(i32 addrspace(1)* %out, <4 x i32> %sgpr, i32 %cond) {
|
|
entry:
|
|
%vgpr = call i32 @llvm.r600.read.tidig.x() #1
|
|
%tmp = icmp eq i32 %cond, 0
|
|
br i1 %tmp, label %if, label %else
|
|
|
|
if: ; preds = %entry
|
|
%tmp1 = getelementptr i32 addrspace(1)* %out, i32 1
|
|
%tmp2 = extractelement <4 x i32> %sgpr, i32 1
|
|
store i32 %tmp2, i32 addrspace(1)* %out
|
|
br label %endif
|
|
|
|
else: ; preds = %entry
|
|
%tmp3 = extractelement <4 x i32> %sgpr, i32 2
|
|
%tmp4 = sub i32 %vgpr, %tmp3
|
|
store i32 %tmp4, i32 addrspace(1)* %out
|
|
br label %endif
|
|
|
|
endif: ; preds = %else, %if
|
|
ret void
|
|
}
|
|
|
|
; Test that we fold an immediate that was illegal for a 64-bit op into the
|
|
; 32-bit op when we shrink it.
|
|
|
|
; FUNC-LABEL: @add_fold
|
|
; SI: V_ADD_F32_e32 v{{[0-9]+}}, 0x44800000
|
|
define void @add_fold(float addrspace(1)* %out) {
|
|
entry:
|
|
%tmp = call i32 @llvm.r600.read.tidig.x()
|
|
%tmp1 = uitofp i32 %tmp to float
|
|
%tmp2 = fadd float %tmp1, 1.024000e+03
|
|
store float %tmp2, float addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare i32 @llvm.r600.read.tidig.x() #0
|
|
|
|
attributes #0 = { nounwind readnone }
|
|
attributes #1 = { readnone }
|