mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-31 07:52:55 +01:00
7c091ffbf7
We weren't computing structure size correctly and we were relying on the original alloca instruction to compute the offset, which isn't always reliable. Reviewed-by: Vincent Lejeune <vljn@ovi.com> llvm-svn: 183568
66 lines
2.3 KiB
LLVM
66 lines
2.3 KiB
LLVM
; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s
|
|
|
|
; This test checks that uses and defs of the AR register happen in the same
|
|
; instruction clause.
|
|
|
|
; CHECK: @mova_same_clause
|
|
; CHECK: MOVA_INT
|
|
; CHECK-NOT: ALU clause
|
|
; CHECK: 0 + AR.x
|
|
; CHECK: MOVA_INT
|
|
; CHECK-NOT: ALU clause
|
|
; CHECK: 0 + AR.x
|
|
|
|
define void @mova_same_clause(i32 addrspace(1)* nocapture %out, i32 addrspace(1)* nocapture %in) {
|
|
entry:
|
|
%stack = alloca [5 x i32], align 4
|
|
%0 = load i32 addrspace(1)* %in, align 4
|
|
%arrayidx1 = getelementptr inbounds [5 x i32]* %stack, i32 0, i32 %0
|
|
store i32 4, i32* %arrayidx1, align 4
|
|
%arrayidx2 = getelementptr inbounds i32 addrspace(1)* %in, i32 1
|
|
%1 = load i32 addrspace(1)* %arrayidx2, align 4
|
|
%arrayidx3 = getelementptr inbounds [5 x i32]* %stack, i32 0, i32 %1
|
|
store i32 5, i32* %arrayidx3, align 4
|
|
%arrayidx10 = getelementptr inbounds [5 x i32]* %stack, i32 0, i32 0
|
|
%2 = load i32* %arrayidx10, align 4
|
|
store i32 %2, i32 addrspace(1)* %out, align 4
|
|
%arrayidx12 = getelementptr inbounds [5 x i32]* %stack, i32 0, i32 1
|
|
%3 = load i32* %arrayidx12
|
|
%arrayidx13 = getelementptr inbounds i32 addrspace(1)* %out, i32 1
|
|
store i32 %3, i32 addrspace(1)* %arrayidx13
|
|
ret void
|
|
}
|
|
|
|
; This test checks that the stack offset is calculated correctly for structs.
|
|
; All register loads/stores should be optimized away, so there shouldn't be
|
|
; any MOVA instructions.
|
|
;
|
|
; XXX: This generated code has unnecessary MOVs, we should be able to optimize
|
|
; this.
|
|
|
|
; CHECK: @multiple_structs
|
|
; CHECK-NOT: MOVA_INT
|
|
|
|
%struct.point = type { i32, i32 }
|
|
|
|
define void @multiple_structs(i32 addrspace(1)* %out) {
|
|
entry:
|
|
%a = alloca %struct.point
|
|
%b = alloca %struct.point
|
|
%a.x.ptr = getelementptr %struct.point* %a, i32 0, i32 0
|
|
%a.y.ptr = getelementptr %struct.point* %a, i32 0, i32 1
|
|
%b.x.ptr = getelementptr %struct.point* %b, i32 0, i32 0
|
|
%b.y.ptr = getelementptr %struct.point* %b, i32 0, i32 1
|
|
store i32 0, i32* %a.x.ptr
|
|
store i32 1, i32* %a.y.ptr
|
|
store i32 2, i32* %b.x.ptr
|
|
store i32 3, i32* %b.y.ptr
|
|
%a.indirect.ptr = getelementptr %struct.point* %a, i32 0, i32 0
|
|
%b.indirect.ptr = getelementptr %struct.point* %b, i32 0, i32 0
|
|
%a.indirect = load i32* %a.indirect.ptr
|
|
%b.indirect = load i32* %b.indirect.ptr
|
|
%0 = add i32 %a.indirect, %b.indirect
|
|
store i32 %0, i32 addrspace(1)* %out
|
|
ret void
|
|
}
|