llvm-6502/test/CodeGen/R600/min.ll
Matt Arsenault 7fc3bdab6a R600/SI: Only form min/max with 1 use.
If the condition is used for something else, this increases
the number of instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224646 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-19 23:15:30 +00:00

121 lines
4.5 KiB
LLVM

; RUN: llc -march=r600 -mcpu=SI < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
declare i32 @llvm.r600.read.tidig.x() nounwind readnone
; FUNC-LABEL: @v_test_imin_sle_i32
; SI: v_min_i32_e32
define void @v_test_imin_sle_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %aptr, i32 addrspace(1)* %bptr) nounwind {
%tid = call i32 @llvm.r600.read.tidig.x() nounwind readnone
%gep0 = getelementptr i32 addrspace(1)* %aptr, i32 %tid
%gep1 = getelementptr i32 addrspace(1)* %bptr, i32 %tid
%outgep = getelementptr i32 addrspace(1)* %out, i32 %tid
%a = load i32 addrspace(1)* %gep0, align 4
%b = load i32 addrspace(1)* %gep1, align 4
%cmp = icmp sle i32 %a, %b
%val = select i1 %cmp, i32 %a, i32 %b
store i32 %val, i32 addrspace(1)* %outgep, align 4
ret void
}
; FUNC-LABEL: @s_test_imin_sle_i32
; SI: s_min_i32
define void @s_test_imin_sle_i32(i32 addrspace(1)* %out, i32 %a, i32 %b) nounwind {
%cmp = icmp sle i32 %a, %b
%val = select i1 %cmp, i32 %a, i32 %b
store i32 %val, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: @v_test_imin_slt_i32
; SI: v_min_i32_e32
define void @v_test_imin_slt_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %aptr, i32 addrspace(1)* %bptr) nounwind {
%tid = call i32 @llvm.r600.read.tidig.x() nounwind readnone
%gep0 = getelementptr i32 addrspace(1)* %aptr, i32 %tid
%gep1 = getelementptr i32 addrspace(1)* %bptr, i32 %tid
%outgep = getelementptr i32 addrspace(1)* %out, i32 %tid
%a = load i32 addrspace(1)* %gep0, align 4
%b = load i32 addrspace(1)* %gep1, align 4
%cmp = icmp slt i32 %a, %b
%val = select i1 %cmp, i32 %a, i32 %b
store i32 %val, i32 addrspace(1)* %outgep, align 4
ret void
}
; FUNC-LABEL: @s_test_imin_slt_i32
; SI: s_min_i32
define void @s_test_imin_slt_i32(i32 addrspace(1)* %out, i32 %a, i32 %b) nounwind {
%cmp = icmp slt i32 %a, %b
%val = select i1 %cmp, i32 %a, i32 %b
store i32 %val, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: @v_test_umin_ule_i32
; SI: v_min_u32_e32
define void @v_test_umin_ule_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %aptr, i32 addrspace(1)* %bptr) nounwind {
%tid = call i32 @llvm.r600.read.tidig.x() nounwind readnone
%gep0 = getelementptr i32 addrspace(1)* %aptr, i32 %tid
%gep1 = getelementptr i32 addrspace(1)* %bptr, i32 %tid
%outgep = getelementptr i32 addrspace(1)* %out, i32 %tid
%a = load i32 addrspace(1)* %gep0, align 4
%b = load i32 addrspace(1)* %gep1, align 4
%cmp = icmp ule i32 %a, %b
%val = select i1 %cmp, i32 %a, i32 %b
store i32 %val, i32 addrspace(1)* %outgep, align 4
ret void
}
; FUNC-LABEL: @s_test_umin_ule_i32
; SI: s_min_u32
define void @s_test_umin_ule_i32(i32 addrspace(1)* %out, i32 %a, i32 %b) nounwind {
%cmp = icmp ule i32 %a, %b
%val = select i1 %cmp, i32 %a, i32 %b
store i32 %val, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: @v_test_umin_ult_i32
; SI: v_min_u32_e32
define void @v_test_umin_ult_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %aptr, i32 addrspace(1)* %bptr) nounwind {
%tid = call i32 @llvm.r600.read.tidig.x() nounwind readnone
%gep0 = getelementptr i32 addrspace(1)* %aptr, i32 %tid
%gep1 = getelementptr i32 addrspace(1)* %bptr, i32 %tid
%outgep = getelementptr i32 addrspace(1)* %out, i32 %tid
%a = load i32 addrspace(1)* %gep0, align 4
%b = load i32 addrspace(1)* %gep1, align 4
%cmp = icmp ult i32 %a, %b
%val = select i1 %cmp, i32 %a, i32 %b
store i32 %val, i32 addrspace(1)* %outgep, align 4
ret void
}
; FUNC-LABEL: @s_test_umin_ult_i32
; SI: s_min_u32
define void @s_test_umin_ult_i32(i32 addrspace(1)* %out, i32 %a, i32 %b) nounwind {
%cmp = icmp ult i32 %a, %b
%val = select i1 %cmp, i32 %a, i32 %b
store i32 %val, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: @v_test_umin_ult_i32_multi_use
; SI-NOT: v_min
; SI: v_cmp_lt_u32
; SI-NEXT: v_cndmask_b32
; SI-NOT: v_min
; SI: s_endpgm
define void @v_test_umin_ult_i32_multi_use(i32 addrspace(1)* %out0, i1 addrspace(1)* %out1, i32 addrspace(1)* %aptr, i32 addrspace(1)* %bptr) nounwind {
%tid = call i32 @llvm.r600.read.tidig.x() nounwind readnone
%gep0 = getelementptr i32 addrspace(1)* %aptr, i32 %tid
%gep1 = getelementptr i32 addrspace(1)* %bptr, i32 %tid
%outgep0 = getelementptr i32 addrspace(1)* %out0, i32 %tid
%outgep1 = getelementptr i1 addrspace(1)* %out1, i32 %tid
%a = load i32 addrspace(1)* %gep0, align 4
%b = load i32 addrspace(1)* %gep1, align 4
%cmp = icmp ult i32 %a, %b
%val = select i1 %cmp, i32 %a, i32 %b
store i32 %val, i32 addrspace(1)* %outgep0, align 4
store i1 %cmp, i1 addrspace(1)* %outgep1
ret void
}