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c88c1a4581
a zero. This situation arrises in Fortran code with induction variables that start at 1 instead of 0. This fixes PR7651. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108424 91177308-0d34-0410-b5e6-96231b3b80d8
45 lines
1.7 KiB
LLVM
45 lines
1.7 KiB
LLVM
; RUN: llc -march=x86 < %s | FileCheck %s
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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-n8:16:32"
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target triple = "i386-pc-linux-gnu"
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; PR7651
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; CHECK: align
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; CHECK: align
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; CHECK: align
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; CHECK: movl $0, (%e
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; CHECK-NEXT: addl $4, %e
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; CHECK-NEXT: decl %e
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; CHECK-NEXT: jne
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%struct.anon = type { [72 x i32], i32 }
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@mp2grad_ = external global %struct.anon
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define void @chomp2g_setup_(i32 %n, i32 %m) nounwind {
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entry:
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br label %bb1
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bb1: ; preds = %bb6, %bb
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%indvar11 = phi i32 [ %indvar.next12, %bb6 ], [ 0, %entry ] ; <i32> [#uses=2]
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%tmp21 = add i32 %indvar11, 1 ; <i32> [#uses=1]
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%t = load i32* getelementptr inbounds (%struct.anon* @mp2grad_, i32 0, i32 1)
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%tmp15 = mul i32 %n, %t ; <i32> [#uses=1]
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%tmp16 = add i32 %tmp21, %tmp15 ; <i32> [#uses=1]
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%tmp17 = shl i32 %tmp16, 3 ; <i32> [#uses=1]
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%tmp18 = add i32 %tmp17, -8 ; <i32> [#uses=1]
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br label %bb2
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bb2: ; preds = %bb2, %bb2.preheader
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%indvar = phi i32 [ 0, %bb1 ], [ %indvar.next, %bb2 ] ; <i32> [#uses=2]
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%tmp19 = add i32 %tmp18, %indvar ; <i32> [#uses=1]
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%scevgep = getelementptr %struct.anon* @mp2grad_, i32 0, i32 0, i32 %tmp19 ; <i32*> [#uses=1]
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store i32 0, i32* %scevgep
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%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1]
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%c = icmp ne i32 %indvar.next, %m
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br i1 %c, label %bb2, label %bb6
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bb6: ; preds = %bb2, %bb1
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%indvar.next12 = add i32 %indvar11, 1 ; <i32> [#uses=1]
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br label %bb1
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}
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