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f7ea499702
Part of the effort to refactoring frame pointer code generation. We used to use two function attributes "no-frame-pointer-elim" and "no-frame-pointer-elim-non-leaf" to represent three kinds of frame pointer usage: (all) frames use frame pointer, (non-leaf) frames use frame pointer, (none) frame use frame pointer. This CL makes the idea explicit by using only one enum function attribute "frame-pointer" Option "-frame-pointer=" replaces "-disable-fp-elim" for tools such as llc. "no-frame-pointer-elim" and "no-frame-pointer-elim-non-leaf" are still supported for easy migration to "frame-pointer". tests are mostly updated with // replace command line args ‘-disable-fp-elim=false’ with ‘-frame-pointer=none’ grep -iIrnl '\-disable-fp-elim=false' * | xargs sed -i '' -e "s/-disable-fp-elim=false/-frame-pointer=none/g" // replace command line args ‘-disable-fp-elim’ with ‘-frame-pointer=all’ grep -iIrnl '\-disable-fp-elim' * | xargs sed -i '' -e "s/-disable-fp-elim/-frame-pointer=all/g" Patch by Yuanfang Chen (tabloid.adroit)! Differential Revision: https://reviews.llvm.org/D56351 llvm-svn: 351049
59 lines
2.0 KiB
LLVM
59 lines
2.0 KiB
LLVM
; REQUIRES: asserts
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; RUN: llc < %s -mtriple=x86_64-apple-darwin11 -relocation-model=pic -frame-pointer=all -stats 2>&1 | not grep ext-opt
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define fastcc i8* @S_scan_str(i8* %start, i32 %keep_quoted, i32 %keep_delims) nounwind ssp {
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entry:
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switch i8 undef, label %bb6 [
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i8 9, label %bb5
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i8 32, label %bb5
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i8 10, label %bb5
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i8 13, label %bb5
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i8 12, label %bb5
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]
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bb5: ; preds = %entry, %entry, %entry, %entry, %entry
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br label %bb6
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bb6: ; preds = %bb5, %entry
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br i1 undef, label %bb7, label %bb9
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bb7: ; preds = %bb6
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unreachable
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bb9: ; preds = %bb6
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%0 = load i8, i8* undef, align 1 ; <i8> [#uses=3]
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br i1 undef, label %bb12, label %bb10
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bb10: ; preds = %bb9
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br i1 undef, label %bb12, label %bb11
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bb11: ; preds = %bb10
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unreachable
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bb12: ; preds = %bb10, %bb9
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br i1 undef, label %bb13, label %bb14
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bb13: ; preds = %bb12
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store i8 %0, i8* undef, align 1
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%1 = zext i8 %0 to i32 ; <i32> [#uses=1]
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br label %bb18
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bb14: ; preds = %bb12
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br label %bb18
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bb18: ; preds = %bb14, %bb13
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%termcode.0 = phi i32 [ %1, %bb13 ], [ undef, %bb14 ] ; <i32> [#uses=2]
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%2 = icmp eq i8 %0, 0 ; <i1> [#uses=1]
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br i1 %2, label %bb21, label %bb19
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bb19: ; preds = %bb18
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br i1 undef, label %bb21, label %bb20
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bb20: ; preds = %bb19
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br label %bb21
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bb21: ; preds = %bb20, %bb19, %bb18
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%termcode.1 = phi i32 [ %termcode.0, %bb18 ], [ %termcode.0, %bb19 ], [ undef, %bb20 ] ; <i32> [#uses=0]
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unreachable
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}
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