mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-25 05:52:53 +02:00
3a9a1ac61b
For some reason there are both of these available, except for scalar 64-bit compares which only has u64. I'm not sure why there are both (I'm guessing it's for the one bit inputs we don't use), but for consistency always using the unsigned one. llvm-svn: 282832
74 lines
1.8 KiB
LLVM
74 lines
1.8 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=verde < %s | FileCheck %s
|
|
|
|
; Test a simple uniform loop that lives inside non-uniform control flow.
|
|
|
|
; CHECK-LABEL: {{^}}test1:
|
|
; CHECK: v_cmp_ne_u32_e32 vcc, 0
|
|
; CHECK: s_and_saveexec_b64
|
|
; CHECK-NEXT: s_xor_b64
|
|
; CHECK-NEXT: ; mask branch
|
|
; CHECK-NEXT: s_cbranch_execz
|
|
|
|
; CHECK-NEXT: BB{{[0-9]+_[0-9]+}}: ; %loop_body.preheader
|
|
|
|
; CHECK: [[LOOP_BODY_LABEL:BB[0-9]+_[0-9]+]]:
|
|
; CHECK: s_and_b64 vcc, exec, vcc
|
|
; CHECK: s_cbranch_vccz [[LOOP_BODY_LABEL]]
|
|
|
|
; CHECK: s_endpgm
|
|
define amdgpu_ps void @test1(<8 x i32> inreg %rsrc, <2 x i32> %addr.base, i32 %y, i32 %p) {
|
|
main_body:
|
|
%cc = icmp eq i32 %p, 0
|
|
br i1 %cc, label %out, label %loop_body
|
|
|
|
loop_body:
|
|
%counter = phi i32 [ 0, %main_body ], [ %incr, %loop_body ]
|
|
|
|
; Prevent the loop from being optimized out
|
|
call void asm sideeffect "", "" ()
|
|
|
|
%incr = add i32 %counter, 1
|
|
%lc = icmp sge i32 %incr, 1000
|
|
br i1 %lc, label %out, label %loop_body
|
|
|
|
out:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: {{^}}test2:
|
|
; CHECK: s_and_saveexec_b64
|
|
; CHECK-NEXT: s_xor_b64
|
|
; CHECK-NEXT: ; mask branch
|
|
; CHECK-NEXT: s_cbranch_execz
|
|
define void @test2(i32 addrspace(1)* %out, i32 %a, i32 %b) {
|
|
main_body:
|
|
%tid = call i32 @llvm.amdgcn.workitem.id.x() #1
|
|
%cc = icmp eq i32 %tid, 0
|
|
br i1 %cc, label %done1, label %if
|
|
|
|
if:
|
|
%cmp = icmp eq i32 %a, 0
|
|
br i1 %cmp, label %done0, label %loop_body
|
|
|
|
loop_body:
|
|
%counter = phi i32 [ 0, %if ], [0, %done0], [ %incr, %loop_body ]
|
|
|
|
; Prevent the loop from being optimized out
|
|
call void asm sideeffect "", "" ()
|
|
|
|
%incr = add i32 %counter, 1
|
|
%lc = icmp sge i32 %incr, 1000
|
|
br i1 %lc, label %done1, label %loop_body
|
|
|
|
done0:
|
|
%cmp0 = icmp eq i32 %b, 0
|
|
br i1 %cmp0, label %done1, label %loop_body
|
|
|
|
done1:
|
|
ret void
|
|
}
|
|
|
|
declare i32 @llvm.amdgcn.workitem.id.x() #1
|
|
|
|
attributes #1 = { nounwind readonly }
|