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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
56 lines
1.9 KiB
LLVM
56 lines
1.9 KiB
LLVM
; RUN: llc < %s -frame-pointer=all -O0 -mcpu=i486 | grep 1082126238 | count 3
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; RUN: llc < %s -frame-pointer=all -O0 -mcpu=i486 | grep -- -1236950581 | count 1
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;; magic constants are 3.999f and half of 3.999
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; ModuleID = '1489.c'
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
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target triple = "i686-apple-darwin8"
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@.str = internal constant [13 x i8] c"%d %d %d %d\0A\00" ; <[13 x i8]*> [#uses=1]
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define i32 @quux() nounwind {
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entry:
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%tmp1 = tail call i32 @lrintf( float 0x400FFDF3C0000000 ) ; <i32> [#uses=1]
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%tmp2 = icmp slt i32 %tmp1, 1 ; <i1> [#uses=1]
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%tmp23 = zext i1 %tmp2 to i32 ; <i32> [#uses=1]
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ret i32 %tmp23
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}
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declare i32 @lrintf(float)
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define i32 @foo() nounwind {
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entry:
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%tmp1 = tail call i32 @lrint( double 3.999000e+00 ) ; <i32> [#uses=1]
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%tmp2 = icmp slt i32 %tmp1, 1 ; <i1> [#uses=1]
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%tmp23 = zext i1 %tmp2 to i32 ; <i32> [#uses=1]
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ret i32 %tmp23
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}
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declare i32 @lrint(double)
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define i32 @bar() nounwind {
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entry:
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%tmp1 = tail call i32 @lrintf( float 0x400FFDF3C0000000 ) ; <i32> [#uses=1]
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%tmp2 = icmp slt i32 %tmp1, 1 ; <i1> [#uses=1]
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%tmp23 = zext i1 %tmp2 to i32 ; <i32> [#uses=1]
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ret i32 %tmp23
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}
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define i32 @baz() nounwind {
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entry:
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%tmp1 = tail call i32 @lrintf( float 0x400FFDF3C0000000 ) ; <i32> [#uses=1]
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%tmp2 = icmp slt i32 %tmp1, 1 ; <i1> [#uses=1]
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%tmp23 = zext i1 %tmp2 to i32 ; <i32> [#uses=1]
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ret i32 %tmp23
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}
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define i32 @main() nounwind {
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entry:
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%tmp = tail call i32 @baz( ) ; <i32> [#uses=1]
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%tmp1 = tail call i32 @bar( ) ; <i32> [#uses=1]
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%tmp2 = tail call i32 @foo( ) ; <i32> [#uses=1]
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%tmp3 = tail call i32 @quux( ) ; <i32> [#uses=1]
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%tmp5 = tail call i32 (i8*, ...) @printf( i8* getelementptr ([13 x i8], [13 x i8]* @.str, i32 0, i32 0), i32 %tmp3, i32 %tmp2, i32 %tmp1, i32 %tmp ) ; <i32> [#uses=0]
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ret i32 undef
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}
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declare i32 @printf(i8*, ...)
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