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fbb662f840
In r143502, we renamed getHostTriple() to getDefaultTargetTriple() as part of work to allow the user to supply a different default target triple at configure time. This change also affected the JIT. However, it is inappropriate to use the default target triple in the JIT in most circumstances because this will not necessarily match the current architecture used by the process, leading to illegal instruction and other such errors at run time. Introduce the getProcessTriple() function for use in the JIT and its clients, and cause the JIT to use it. On architectures with a single bitness, the host and process triples are identical. On other architectures, the host triple represents the architecture of the host CPU, while the process triple represents the architecture used by the host CPU to interpret machine code within the current process. For example, when executing 32-bit code on a 64-bit Linux machine, the host triple may be 'x86_64-unknown-linux-gnu', while the process triple may be 'i386-unknown-linux-gnu'. This fixes JIT for the 32-on-64-bit (and vice versa) build on non-Apple platforms. Differential Revision: http://llvm-reviews.chandlerc.com/D254 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172627 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
2.0 KiB
LLVM
60 lines
2.0 KiB
LLVM
; RUN: %lli_mcjit -force-interpreter=true %s | grep 1
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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-f80:32:32"
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target triple = "i686-pc-linux-gnu"
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@.str = internal constant [10 x i8] c"MSB = %d\0A\00" ; <[10 x i8]*> [#uses=1]
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define i65 @foo(i65 %x) {
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entry:
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%x_addr = alloca i65 ; <i65*> [#uses=2]
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%retval = alloca i65 ; <i65*> [#uses=2]
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%tmp = alloca i65 ; <i65*> [#uses=2]
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%"alloca point" = bitcast i65 0 to i65 ; <i65> [#uses=0]
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store i65 %x, i65* %x_addr
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%tmp1 = load i65* %x_addr, align 4 ; <i65> [#uses=1]
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%tmp2 = ashr i65 %tmp1, 65 ; <i65> [#uses=1]
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store i65 %tmp2, i65* %tmp, align 4
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%tmp3 = load i65* %tmp, align 4 ; <i65> [#uses=1]
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store i65 %tmp3, i65* %retval, align 4
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br label %return
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return: ; preds = %entry
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%retval4 = load i65* %retval ; <i65> [#uses=1]
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ret i65 %retval4
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}
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define i32 @main() {
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entry:
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%retval = alloca i32 ; <i32*> [#uses=1]
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%iftmp.0 = alloca i32 ; <i32*> [#uses=3]
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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%tmp = call i65 @foo( i65 -9 ) ; <i65> [#uses=1]
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%tmp1 = lshr i65 %tmp, 64 ; <i65> [#uses=1]
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%tmp2 = xor i65 %tmp1, 1 ; <i65> [#uses=1]
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%tmp3 = and i65 %tmp2, 1 ; <i65> [#uses=1]
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%tmp34 = trunc i65 %tmp3 to i8 ; <i8> [#uses=1]
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%toBool = icmp ne i8 %tmp34, 0 ; <i1> [#uses=1]
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br i1 %toBool, label %cond_true, label %cond_false
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cond_true: ; preds = %entry
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store i32 0, i32* %iftmp.0, align 4
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br label %cond_next
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cond_false: ; preds = %entry
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store i32 1, i32* %iftmp.0, align 4
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br label %cond_next
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cond_next: ; preds = %cond_false, %cond_true
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%tmp5 = getelementptr [10 x i8]* @.str, i32 0, i32 0 ; <i8*> [#uses=1]
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%tmp6 = load i32* %iftmp.0, align 4 ; <i32> [#uses=1]
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%tmp7 = call i32 (i8*, ...)* @printf( i8* noalias %tmp5, i32 %tmp6 ) nounwind ; <i32> [#uses=0]
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br label %return
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return: ; preds = %cond_next
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store i32 0, i32* %retval, align 4
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%retval8 = load i32* %retval ; <i32> [#uses=1]
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ret i32 %retval8
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}
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declare i32 @printf(i8* noalias , ...) nounwind
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