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353476cbbb
Do not generate new vector values for the same entries because we know that the incoming values from the same block must be identical. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188185 91177308-0d34-0410-b5e6-96231b3b80d8
42 lines
1.6 KiB
LLVM
42 lines
1.6 KiB
LLVM
; RUN: opt < %s -basicaa -slp-vectorizer -dce -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.8.0"
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%struct.DState = type { i32, i32 }
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@b = common global %struct.DState zeroinitializer, align 4
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@d = common global i32 0, align 4
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@c = common global i32 0, align 4
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@a = common global i32 0, align 4
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@e = common global i32 0, align 4
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define i32 @fn1() {
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entry:
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%0 = load i32* getelementptr inbounds (%struct.DState* @b, i32 0, i32 0), align 4
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%1 = load i32* getelementptr inbounds (%struct.DState* @b, i32 0, i32 1), align 4
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%2 = load i32* @d, align 4
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%cond = icmp eq i32 %2, 0
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br i1 %cond, label %sw.bb, label %save_state_and_return
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sw.bb: ; preds = %entry
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%3 = load i32* @c, align 4
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%and = and i32 %3, 7
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store i32 %and, i32* @a, align 4
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switch i32 %and, label %if.end [
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i32 7, label %save_state_and_return
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i32 0, label %save_state_and_return
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]
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if.end: ; preds = %sw.bb
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br label %save_state_and_return
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save_state_and_return: ; preds = %sw.bb, %sw.bb, %if.end, %entry
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%t.0 = phi i32 [ 0, %if.end ], [ %0, %entry ], [ %0, %sw.bb ], [ %0, %sw.bb ]
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%f.0 = phi i32 [ 0, %if.end ], [ %1, %entry ], [ 0, %sw.bb ], [ 0, %sw.bb ]
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store i32 %t.0, i32* getelementptr inbounds (%struct.DState* @b, i32 0, i32 0), align 4
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store i32 %f.0, i32* getelementptr inbounds (%struct.DState* @b, i32 0, i32 1), align 4
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ret i32 undef
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}
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