mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
7893d29c62
fold selectcc (selectcc x, y, a, b, cc), b, a, b, setne ->
selectcc x, y, a, b, cc
Reviewed-by: Christian König <christian.koenig@amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176700 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
1.6 KiB
LLVM
65 lines
1.6 KiB
LLVM
; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s
|
|
|
|
; CHECK: @test_a
|
|
; CHECK-NOT: CND
|
|
; CHECK: SET{{[NEQGTL]+}}_DX10
|
|
|
|
define void @test_a(i32 addrspace(1)* %out, float %in) {
|
|
entry:
|
|
%0 = fcmp ult float %in, 0.000000e+00
|
|
%1 = select i1 %0, float 1.000000e+00, float 0.000000e+00
|
|
%2 = fsub float -0.000000e+00, %1
|
|
%3 = fptosi float %2 to i32
|
|
%4 = bitcast i32 %3 to float
|
|
%5 = bitcast float %4 to i32
|
|
%6 = icmp ne i32 %5, 0
|
|
br i1 %6, label %IF, label %ENDIF
|
|
|
|
IF:
|
|
%7 = getelementptr i32 addrspace(1)* %out, i32 1
|
|
store i32 0, i32 addrspace(1)* %7
|
|
br label %ENDIF
|
|
|
|
ENDIF:
|
|
store i32 0, i32 addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
; Same as test_a, but the branch labels are swapped to produce the inverse cc
|
|
; for the icmp instruction
|
|
|
|
; CHECK: @test_b
|
|
; CHECK: SET{{[GTEQN]+}}_DX10
|
|
; CHECK-NEXT: PRED_
|
|
define void @test_b(i32 addrspace(1)* %out, float %in) {
|
|
entry:
|
|
%0 = fcmp ult float %in, 0.0
|
|
%1 = select i1 %0, float 1.000000e+00, float 0.000000e+00
|
|
%2 = fsub float -0.000000e+00, %1
|
|
%3 = fptosi float %2 to i32
|
|
%4 = bitcast i32 %3 to float
|
|
%5 = bitcast float %4 to i32
|
|
%6 = icmp ne i32 %5, 0
|
|
br i1 %6, label %ENDIF, label %IF
|
|
|
|
IF:
|
|
%7 = getelementptr i32 addrspace(1)* %out, i32 1
|
|
store i32 0, i32 addrspace(1)* %7
|
|
br label %ENDIF
|
|
|
|
ENDIF:
|
|
store i32 0, i32 addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
; Test a CND*_INT instruction with float true/false values
|
|
; CHECK: @test_c
|
|
; CHECK: CND{{[GTE]+}}_INT
|
|
define void @test_c(float addrspace(1)* %out, i32 %in) {
|
|
entry:
|
|
%0 = icmp sgt i32 %in, 0
|
|
%1 = select i1 %0, float 2.0, float 3.0
|
|
store float %1, float addrspace(1)* %out
|
|
ret void
|
|
}
|