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26 lines
988 B
LLVM
26 lines
988 B
LLVM
; RUN: opt < %s -instcombine -S | grep "load volatile" | count 2
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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-f80:128:128"
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target triple = "i386-apple-darwin8"
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@g_1 = internal global i32 0 ; <i32*> [#uses=3]
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define i32 @main() nounwind {
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entry:
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%tmp93 = icmp slt i32 0, 10 ; <i1> [#uses=0]
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%tmp34 = load volatile i32, i32* @g_1, align 4 ; <i32> [#uses=1]
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br label %bb
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bb: ; preds = %bb, %entry
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%b.0.reg2mem.0 = phi i32 [ 0, %entry ], [ %tmp6, %bb ] ; <i32> [#uses=1]
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%tmp3.reg2mem.0 = phi i32 [ %tmp34, %entry ], [ %tmp3, %bb ] ; <i32> [#uses=1]
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%tmp4 = add i32 %tmp3.reg2mem.0, 5 ; <i32> [#uses=1]
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store volatile i32 %tmp4, i32* @g_1, align 4
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%tmp6 = add i32 %b.0.reg2mem.0, 1 ; <i32> [#uses=2]
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%tmp9 = icmp slt i32 %tmp6, 10 ; <i1> [#uses=1]
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%tmp3 = load volatile i32, i32* @g_1, align 4 ; <i32> [#uses=1]
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br i1 %tmp9, label %bb, label %bb11
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bb11: ; preds = %bb
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ret i32 0
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}
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