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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
77 lines
3.3 KiB
LLVM
77 lines
3.3 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv7-apple-darwin -arm-atomic-cfg-tidy=0 -mcpu=cortex-a8 -relocation-model=pic -frame-pointer=all | FileCheck %s
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; rdar://7352504
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; Make sure we use "str r9, [sp, #+28]" instead of "sub.w r4, r7, #256" followed by "str r9, [r4, #-32]".
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%0 = type { i16, i8, i8 }
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%1 = type { [2 x i32], [2 x i32] }
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%2 = type { %union.rec* }
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%struct.FILE_POS = type { i8, i8, i16, i32 }
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%struct.GAP = type { i8, i8, i16 }
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%struct.LIST = type { %union.rec*, %union.rec* }
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%struct.STYLE = type { %union.anon, %union.anon, i16, i16, i32 }
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%struct.head_type = type { [2 x %struct.LIST], %union.FIRST_UNION, %union.SECOND_UNION, %union.THIRD_UNION, %union.FOURTH_UNION, %union.rec*, %2, %union.rec*, %union.rec*, %union.rec*, %union.rec*, %union.rec*, %union.rec*, %union.rec*, %union.rec*, i32 }
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%union.FIRST_UNION = type { %struct.FILE_POS }
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%union.FOURTH_UNION = type { %struct.STYLE }
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%union.SECOND_UNION = type { %0 }
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%union.THIRD_UNION = type { %1 }
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%union.anon = type { %struct.GAP }
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%union.rec = type { %struct.head_type }
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@zz_hold = external global %union.rec* ; <%union.rec**> [#uses=2]
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@zz_res = external global %union.rec* ; <%union.rec**> [#uses=1]
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define %union.rec* @Manifest(%union.rec* %x, %union.rec* %env, %struct.STYLE* %style, %union.rec** %bthr, %union.rec** %fthr, %union.rec** %target, %union.rec** %crs, i32 %ok, i32 %need_expand, %union.rec** %enclose, i32 %fcr) nounwind {
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entry:
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; CHECK: ldr{{(.w)?}} {{(r[0-9]+)|(lr)}}, [r7, #28]
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%xgaps.i = alloca [32 x %union.rec*], align 4 ; <[32 x %union.rec*]*> [#uses=0]
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%ycomp.i = alloca [32 x %union.rec*], align 4 ; <[32 x %union.rec*]*> [#uses=0]
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br label %bb20
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bb20: ; preds = %entry
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switch i32 undef, label %bb1287 [
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i32 110, label %bb119
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i32 120, label %bb119
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i32 210, label %bb420
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i32 230, label %bb420
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i32 450, label %bb438
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i32 460, label %bb438
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i32 550, label %bb533
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i32 560, label %bb569
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i32 640, label %bb745
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i32 780, label %bb1098
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]
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bb119: ; preds = %bb20, %bb20
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unreachable
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bb420: ; preds = %bb20, %bb20
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; CHECK: bb420
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; CHECK: str{{(.w)?}} r{{[0-9]+}}, [sp
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; CHECK: str{{(.w)?}} r{{[0-9]+}}, [sp
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; CHECK: str{{(.w)?}} r{{[0-9]+}}, [sp
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; CHECK: str{{(.w)?}} r{{[0-9]+}}, [sp
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store volatile %union.rec* null, %union.rec** @zz_hold, align 4
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store %union.rec* null, %union.rec** @zz_res, align 4
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store volatile %union.rec* %x, %union.rec** @zz_hold, align 4
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%0 = call %union.rec* @Manifest(%union.rec* undef, %union.rec* %env, %struct.STYLE* %style, %union.rec** %bthr, %union.rec** %fthr, %union.rec** %target, %union.rec** %crs, i32 %ok, i32 %need_expand, %union.rec** %enclose, i32 %fcr) nounwind ; <%union.rec*> [#uses=0]
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unreachable
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bb438: ; preds = %bb20, %bb20
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unreachable
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bb533: ; preds = %bb20
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ret %union.rec* %x
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bb569: ; preds = %bb20
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unreachable
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bb745: ; preds = %bb20
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unreachable
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bb1098: ; preds = %bb20
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unreachable
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bb1287: ; preds = %bb20
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unreachable
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}
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