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; RUN: llc < %s -mtriple=i386 -mcpu=pentium4 | FileCheck %s
; RUN: llc < %s -mtriple=i386 -mcpu=pentium4m | FileCheck %s
; RUN: llc < %s -mtriple=i386 -mcpu=pentium-m | FileCheck %s
; RUN: llc < %s -mtriple=i386 -mcpu=prescott | FileCheck %s
; RUN: llc < %s -mtriple=i386 -mcpu=nocona | FileCheck %s
;
; Verify that scheduling puts some distance between a load feeding into
; the address of another load, and that second load. This currently
; happens during the post-RA-scheduler, which should be enabled by
; default with the above specified cpus.
@ptrs = external global [0 x i32*], align 4
@idxa = common global i32 0, align 4
@idxb = common global i32 0, align 4
@res = common global i32 0, align 4
define void @addindirect() {
; CHECK-LABEL: addindirect:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: movl idxb, %ecx
; CHECK-NEXT: movl idxa, %eax
; CHECK-NEXT: movl ptrs(,%ecx,4), %ecx
; CHECK-NEXT: movl ptrs(,%eax,4), %eax
; CHECK-NEXT: movl (%ecx), %ecx
; CHECK-NEXT: addl (%eax), %ecx
; CHECK-NEXT: movl %ecx, res
; CHECK-NEXT: retl
entry:
%0 = load i32, i32* @idxa, align 4
%arrayidx = getelementptr inbounds [0 x i32*], [0 x i32*]* @ptrs, i32 0, i32 %0
%1 = load i32*, i32** %arrayidx, align 4
%2 = load i32, i32* %1, align 4
%3 = load i32, i32* @idxb, align 4
%arrayidx1 = getelementptr inbounds [0 x i32*], [0 x i32*]* @ptrs, i32 0, i32 %3
%4 = load i32*, i32** %arrayidx1, align 4
%5 = load i32, i32* %4, align 4
%add = add i32 %5, %2
store i32 %add, i32* @res, align 4
ret void
}
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