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https://github.com/c64scene-ar/llvm-6502.git
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e9789ef994
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17536 91177308-0d34-0410-b5e6-96231b3b80d8
34 lines
968 B
LLVM
34 lines
968 B
LLVM
; RUN: llvm-as -f %s -o %t.bc
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; RUN: lli %t.bc > /dev/null
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; This testcase exposes a bug in the local register allocator where it runs out
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; of registers (due to too many overlapping live ranges), but then attempts to
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; use the ESP register (which is not allocatable) to hold a value.
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int %main(uint %A) {
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%Ap2 = alloca uint, uint %A ; ESP gets used again...
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%B = add uint %A, 1 ; Produce lots of overlapping live ranges
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%C = add uint %A, 2
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%D = add uint %A, 3
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%E = add uint %A, 4
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%F = add uint %A, 5
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%G = add uint %A, 6
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%H = add uint %A, 7
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%I = add uint %A, 8
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%J = add uint %A, 9
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%K = add uint %A, 10
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store uint %A, uint *%Ap2 ; Uses of all of the values
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store uint %B, uint *%Ap2
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store uint %C, uint *%Ap2
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store uint %D, uint *%Ap2
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store uint %E, uint *%Ap2
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store uint %F, uint *%Ap2
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store uint %G, uint *%Ap2
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store uint %H, uint *%Ap2
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store uint %I, uint *%Ap2
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store uint %J, uint *%Ap2
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store uint %K, uint *%Ap2
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ret int 0
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}
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