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llvm-mirror/test/CodeGen/X86/2008-01-08-SchedulerCrash.ll
Dan Gohman 58ad056286 Add CMP32mr and friends to the load-unfolding table. Among
other things, this allows the scheduler to unfold a load operand
in the 2008-01-08-SchedulerCrash.ll testcase, so it now successfully
clones the comparison to avoid a pushf+popf.

llvm-svn: 48777
2008-03-25 16:53:19 +00:00

33 lines
1.0 KiB
LLVM

; RUN: llvm-as < %s | llc -march=x86 | not grep pushf
%struct.indexentry = type { i32, i8*, i8*, i8*, i8*, i8* }
define i32 @_bfd_stab_section_find_nearest_line(i32 %offset) nounwind {
entry:
%tmp910 = add i32 0, %offset ; <i32> [#uses=1]
br i1 true, label %bb951, label %bb917
bb917: ; preds = %entry
ret i32 0
bb951: ; preds = %bb986, %entry
%tmp955 = sdiv i32 0, 2 ; <i32> [#uses=3]
%tmp961 = getelementptr %struct.indexentry* null, i32 %tmp955, i32 0 ; <i32*> [#uses=1]
br i1 true, label %bb986, label %bb967
bb967: ; preds = %bb951
ret i32 0
bb986: ; preds = %bb951
%tmp993 = load i32* %tmp961, align 4 ; <i32> [#uses=1]
%tmp995 = icmp ugt i32 %tmp993, %tmp910 ; <i1> [#uses=2]
%tmp1002 = add i32 %tmp955, 1 ; <i32> [#uses=1]
%low.0 = select i1 %tmp995, i32 0, i32 %tmp1002 ; <i32> [#uses=1]
%high.0 = select i1 %tmp995, i32 %tmp955, i32 0 ; <i32> [#uses=1]
%tmp1006 = icmp eq i32 %low.0, %high.0 ; <i1> [#uses=1]
br i1 %tmp1006, label %UnifiedReturnBlock, label %bb951
UnifiedReturnBlock: ; preds = %bb986
ret i32 1
}