llvm-6502/test/CodeGen/XCore/load.ll
Richard Osborne 79186beb28 [XCore] Add ISel pattern for LDWCP
Patch by Robert Lytton.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185518 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-03 07:48:50 +00:00

51 lines
1012 B
LLVM

; RUN: llc < %s -march=xcore | FileCheck %s
define i32 @load32(i32* %p, i32 %offset) nounwind {
entry:
; CHECK: load32:
; CHECK: ldw r0, r0[r1]
%0 = getelementptr i32* %p, i32 %offset
%1 = load i32* %0, align 4
ret i32 %1
}
define i32 @load32_imm(i32* %p) nounwind {
entry:
; CHECK: load32_imm:
; CHECK: ldw r0, r0[11]
%0 = getelementptr i32* %p, i32 11
%1 = load i32* %0, align 4
ret i32 %1
}
define i32 @load16(i16* %p, i32 %offset) nounwind {
entry:
; CHECK: load16:
; CHECK: ld16s r0, r0[r1]
; CHECK-NOT: sext
%0 = getelementptr i16* %p, i32 %offset
%1 = load i16* %0, align 2
%2 = sext i16 %1 to i32
ret i32 %2
}
define i32 @load8(i8* %p, i32 %offset) nounwind {
entry:
; CHECK: load8:
; CHECK: ld8u r0, r0[r1]
; CHECK-NOT: zext
%0 = getelementptr i8* %p, i32 %offset
%1 = load i8* %0, align 1
%2 = zext i8 %1 to i32
ret i32 %2
}
@GConst = external constant i32
define i32 @load_cp() nounwind {
entry:
; CHECK: load_cp:
; CHECK: ldw r0, cp[GConst]
%0 = load i32* @GConst
ret i32 %0
}