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6e5031e0b8
of %icc even for 32-bit and smaller comparisons. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7110 91177308-0d34-0410-b5e6-96231b3b80d8
78 lines
2.3 KiB
LLVM
78 lines
2.3 KiB
LLVM
;; Date: May 28, 2003.
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;; From: test/Programs/MultiSource/Olden-perimeter/maketree.c
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;; Function: int CheckOutside(int x, int y)
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;;
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;; Note: The .ll code below for this regression test has identical
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;; behavior to the above function up to the error, but then prints
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;; true/false on the two branches.
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;;
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;; Error: llc generates a branch-on-xcc instead of branch-on-icc, which
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;; is wrong because the value being compared (int euclid = x*x + y*y)
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;; overflows, so that the 64-bit and 32-bit compares are not equal.
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;;
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;; LLC Output:
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;;
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;; !****** Outputing Function: CheckOutside_34 ******
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;; .align 4
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;; .global CheckOutside_34
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;; .type CheckOutside_34, 2
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;; CheckOutside_34:
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;; .L_CheckOutside_34_LL_0:
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;; save %o6, -192, %o6
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;; mulx %i1, %i1, %i1
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;; mulx %i0, %i0, %i0
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;; sethi %lm(4194304), %o1
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;; or %g0, 1, %o0
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;; add %i0, %i1, %i0
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;; sra %o1, 0, %o1
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;; subcc %i0, %o1, %g0
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;; bg %xcc, .L_CheckOutside_34_LL_3
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;; nop
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;; ba .L_CheckOutside_34_LL_1
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;; nop
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;; ...
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;;
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;;
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target endian = little
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target pointersize = 32
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%.str_1 = internal constant [6 x sbyte] c"true\0A\00" ; <[6 x sbyte]*> [#uses=1]
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%.str_2 = internal constant [7 x sbyte] c"false\0A\00" ; <[7 x sbyte]*> [#uses=1]
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implementation ; Functions:
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declare int %printf(sbyte*, ...)
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internal void %__main() {
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entry: ; No predecessors!
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ret void
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}
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internal void %CheckOutside(int %x.1, int %y.1) {
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entry: ; No predecessors!
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%tmp.2 = mul int %x.1, %x.1 ; <int> [#uses=1]
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%tmp.5 = mul int %y.1, %y.1 ; <int> [#uses=1]
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%tmp.6 = add int %tmp.2, %tmp.5 ; <int> [#uses=1]
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%tmp.8 = setle int %tmp.6, 4194304 ; <bool> [#uses=1]
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br bool %tmp.8, label %then, label %else
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then: ; preds = %entry
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%tmp.11 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([6 x sbyte]* %.str_1, long 0, long 0) ) ; <int> [#uses=0]
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br label %UnifiedExitNode
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else: ; preds = %entry
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%tmp.13 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([7 x sbyte]* %.str_2, long 0, long 0) ) ; <int> [#uses=0]
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br label %UnifiedExitNode
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UnifiedExitNode: ; preds = %then, %else
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ret void
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}
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int %main() {
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entry: ; No predecessors!
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call void %__main( )
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call void %CheckOutside( int 2097152, int 2097152 )
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ret int 0
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}
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