8dba4d42f5
Make the test more robust by replacing undef by pointer arguments. This ensures that the GEPs cannot be folded to undef.
57 lines
2.5 KiB
LLVM
57 lines
2.5 KiB
LLVM
; RUN: opt < %s -loop-reduce -S | FileCheck %s
|
|
|
|
; LSR shouldn't consider %t8 to be an interesting user of %t6, and it
|
|
; should be able to form pretty GEPs.
|
|
|
|
target datalayout = "e-p:64:64:64-p1:16:16:16-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"
|
|
|
|
; Copy of uglygep with a different address space
|
|
; This tests expandAddToGEP uses the right smaller integer type for
|
|
; another address space
|
|
define void @Z4(i8 addrspace(1)* %ptr.i8, float addrspace(1)* addrspace(1)* %ptr.float) {
|
|
; CHECK: define void @Z4
|
|
bb:
|
|
br label %bb3
|
|
|
|
bb1: ; preds = %bb3
|
|
br i1 undef, label %bb10, label %bb2
|
|
|
|
bb2: ; preds = %bb1
|
|
%t = add i16 %t4, 1 ; <i16> [#uses=1]
|
|
br label %bb3
|
|
|
|
bb3: ; preds = %bb2, %bb
|
|
%t4 = phi i16 [ %t, %bb2 ], [ 0, %bb ] ; <i16> [#uses=3]
|
|
br label %bb1
|
|
|
|
; CHECK: bb10:
|
|
; CHECK-NEXT: %t7 = icmp eq i16 %t4, 0
|
|
; Host %t2 computation outside the loop.
|
|
; CHECK-NEXT: [[SCEVGEP:%[^ ]+]] = getelementptr i8, i8 addrspace(1)* %ptr.i8, i16 %t4
|
|
; CHECK-NEXT: br label %bb14
|
|
bb10: ; preds = %bb9
|
|
%t7 = icmp eq i16 %t4, 0 ; <i1> [#uses=1]
|
|
%t3 = add i16 %t4, 16 ; <i16> [#uses=1]
|
|
br label %bb14
|
|
|
|
; CHECK: bb14:
|
|
; CHECK-NEXT: store i8 undef, i8 addrspace(1)* [[SCEVGEP]]
|
|
; CHECK-NEXT: %t6 = load float addrspace(1)*, float addrspace(1)* addrspace(1)* %ptr.float
|
|
; Fold %t3's add within the address.
|
|
; CHECK-NEXT: [[SCEVGEP1:%[^ ]+]] = getelementptr float, float addrspace(1)* %t6, i16 4
|
|
; CHECK-NEXT: [[SCEVGEP2:%[^ ]+]] = bitcast float addrspace(1)* [[SCEVGEP1]] to i8 addrspace(1)*
|
|
; Use the induction variable (%t4) to access the right element
|
|
; CHECK-NEXT: [[ADDRESS:%[^ ]+]] = getelementptr i8, i8 addrspace(1)* [[SCEVGEP2]], i16 %t4
|
|
; CHECK-NEXT: store i8 undef, i8 addrspace(1)* [[ADDRESS]]
|
|
; CHECK-NEXT: br label %bb14
|
|
bb14: ; preds = %bb14, %bb10
|
|
%t2 = getelementptr inbounds i8, i8 addrspace(1)* %ptr.i8, i16 %t4 ; <i8*> [#uses=1]
|
|
store i8 undef, i8 addrspace(1)* %t2
|
|
%t6 = load float addrspace(1)*, float addrspace(1)* addrspace(1)* %ptr.float
|
|
%t8 = bitcast float addrspace(1)* %t6 to i8 addrspace(1)* ; <i8*> [#uses=1]
|
|
%t9 = getelementptr inbounds i8, i8 addrspace(1)* %t8, i16 %t3 ; <i8*> [#uses=1]
|
|
store i8 undef, i8 addrspace(1)* %t9
|
|
br label %bb14
|
|
}
|
|
|