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llvm-project/llvm/test/Assembler/ConstantExprFold.ll

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[Assembler] Regenerate test checks (NFC) Switch this Assembler test to use utc by adding a dummy function and opt run line.
2021-12-28 21:20:29 +08:00
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
; This test checks to make sure that constant exprs fold in some simple
Use llvm-upgrade these tests as they all use old assembly. llvm-svn: 32130
2006-12-03 04:34:08 +08:00
; situations
New testcase for symbolic constant folding opportunities that LLVM should get. llvm-svn: 10811
2004-01-13 13:32:27 +08:00
[Assembler] Regenerate test checks (NFC) Switch this Assembler test to use utc by adding a dummy function and opt run line.
2021-12-28 21:20:29 +08:00
; RUN: opt -S < %s | FileCheck %s
; RUN: llvm-as < %s | llvm-dis | FileCheck %s
verify-uselistorder: Force -preserve-bc-use-list-order llvm-svn: 216022
2014-08-20 05:08:27 +08:00
; RUN: verify-uselistorder %s
New testcase for symbolic constant folding opportunities that LLVM should get. llvm-svn: 10811
2004-01-13 13:32:27 +08:00
Removing llvm upgrade, so remove tests specific to llvm-upgrade and update the tests that used it. llvm-svn: 47225
2008-02-17 07:27:24 +08:00
@A = global i64 0
New testcase for symbolic constant folding opportunities that LLVM should get. llvm-svn: 10811
2004-01-13 13:32:27 +08:00
Make "@name =" mandatory for globals in .ll files. An oddity of the .ll syntax is that the "@var = " in @var = global i32 42 is optional. Writing just global i32 42 is equivalent to @0 = global i32 42 This means that there is a pretty big First set at the top level. The current implementation maintains it manually. I was trying to refactor it, but then started wondering why keep it a all. I personally find the above syntax confusing. It looks like something is missing. This patch removes the feature and simplifies the parser. llvm-svn: 269096
2016-05-11 02:22:45 +08:00
@0 = global i64* inttoptr (i64 add (i64 ptrtoint (i64* @A to i64), i64 0) to i64*) ; X + 0 == X
@1 = global i64* inttoptr (i64 sub (i64 ptrtoint (i64* @A to i64), i64 0) to i64*) ; X - 0 == X
@2 = global i64* inttoptr (i64 mul (i64 ptrtoint (i64* @A to i64), i64 0) to i64*) ; X * 0 == 0
@3 = global i64* inttoptr (i64 sdiv (i64 ptrtoint (i64* @A to i64), i64 1) to i64*) ; X / 1 == X
@4 = global i64* inttoptr (i64 srem (i64 ptrtoint (i64* @A to i64), i64 1) to i64*) ; X % 1 == 0
@5 = global i64* inttoptr (i64 and (i64 ptrtoint (i64* @A to i64), i64 0) to i64*) ; X & 0 == 0
@6 = global i64* inttoptr (i64 and (i64 ptrtoint (i64* @A to i64), i64 -1) to i64*) ; X & -1 == X
@7 = global i64 or (i64 ptrtoint (i64* @A to i64), i64 -1) ; X | -1 == -1
@8 = global i64* inttoptr (i64 xor (i64 ptrtoint (i64* @A to i64), i64 0) to i64*) ; X ^ 0 == X
New testcase for symbolic constant folding opportunities that LLVM should get. llvm-svn: 10811
2004-01-13 13:32:27 +08:00
Removing llvm upgrade, so remove tests specific to llvm-upgrade and update the tests that used it. llvm-svn: 47225
2008-02-17 07:27:24 +08:00
%Ty = type { i32, i32 }
[Assembler] Regenerate test checks (NFC) Switch this Assembler test to use utc by adding a dummy function and opt run line.
2021-12-28 21:20:29 +08:00
@B = external global %Ty
New testcase for symbolic constant folding opportunities that LLVM should get. llvm-svn: 10811
2004-01-13 13:32:27 +08:00
[ConstantFold] Make icmp of gep fold offset based We can fold an equality or unsigned icmp between base+offset1 and base+offset2 with inbounds offsets by comparing the offsets directly. This replaces a pair of specialized folds that tried to reason based on the GEP structure instead. One of those folds was plain wrong (because it does not account for negative offsets), while the other is unnecessarily complicated and limited (e.g. it will fail with bitcasts involved). The disadvantage of this change is that it requires data layout, so the fold is no longer performed by datalayout-independent constant folding. I don't think this is a loss in practice, but it does regress the ConstantExprFold.ll test, which checks folding without running any passes. Differential Revision: https://reviews.llvm.org/D116332
2021-12-28 19:27:04 +08:00
; @9 and @11 will be folded by the target-dependent constant folder instead.
[Assembler] Fix global icmp test Remove test that no longer folds after f08148e874088a07b972203a183db00de9c38a70.
2021-03-09 00:24:41 +08:00
@9 = global i1 icmp ult (i64* @A, i64* getelementptr (i64, i64* @A, i64 1)) ; true
@10 = global i1 icmp slt (i64* @A, i64* getelementptr (i64, i64* @A, i64 0)) ; false
[ConstFold] Don't fold signed comparison of gep of global An inbounds GEP may still cross the sign boundary, so signed icmps cannot be folded (https://alive2.llvm.org/ce/z/XSgi4D). This was previously fixed for other folds in this function, but this one was missed.
2021-12-28 21:09:34 +08:00
@11 = global i1 icmp ult (i32* getelementptr (%Ty, %Ty* @B, i64 0, i32 0),
[Assembler] Regenerate test checks (NFC) Switch this Assembler test to use utc by adding a dummy function and opt run line.
2021-12-28 21:20:29 +08:00
i32* getelementptr (%Ty, %Ty* @B, i64 0, i32 1)) ; true
this line was commented out. llvm-svn: 47228
2008-02-17 08:09:08 +08:00
;global i1 icmp ne (i64* @A, i64* bitcast (%Ty* @B to i64*)) ; true
New testcase for symbolic constant folding opportunities that LLVM should get. llvm-svn: 10811
2004-01-13 13:32:27 +08:00
Implement PR2206. llvm-svn: 49967
2008-04-20 06:17:26 +08:00
; PR2206
@cons = weak global i32 0, align 8 ; <i32*> [#uses=1]
[Assembler] Fix global icmp test Remove test that no longer folds after f08148e874088a07b972203a183db00de9c38a70.
2021-03-09 00:24:41 +08:00
@12 = global i64 and (i64 ptrtoint (i32* @cons to i64), i64 7)
Implement PR2206. llvm-svn: 49967
2008-04-20 06:17:26 +08:00
[Assembler] Fix global icmp test Remove test that no longer folds after f08148e874088a07b972203a183db00de9c38a70.
2021-03-09 00:24:41 +08:00
@13 = global <2 x i8*> getelementptr(i8, <2 x i8*> undef, <2 x i64> <i64 1, i64 1>)
@14 = global <2 x i8*> getelementptr({ i8 }, <2 x { i8 }*> undef, <2 x i64> <i64 1, i64 1>, <2 x i32> <i32 0, i32 0>)
@15 = global <2 x i8*> getelementptr(i8, <2 x i8*> zeroinitializer, <2 x i64> <i64 0, i64 0>)
@16 = global <2 x i8*> getelementptr({ i8 }, <2 x { i8 }*> zeroinitializer, <2 x i64> <i64 0, i64 0>, <2 x i32> <i32 0, i32 0>)
[Assembler] Regenerate test checks (NFC) Switch this Assembler test to use utc by adding a dummy function and opt run line.
2021-12-28 21:20:29 +08:00
; Need a function to make update_test_checks.py work.
;.
; CHECK: @[[A:[a-zA-Z0-9_$"\\.-]+]] = global i64 0
; CHECK: @[[GLOB0:[0-9]+]] = global i64* @A
; CHECK: @[[GLOB1:[0-9]+]] = global i64* @A
; CHECK: @[[GLOB2:[0-9]+]] = global i64* null
; CHECK: @[[GLOB3:[0-9]+]] = global i64* @A
; CHECK: @[[GLOB4:[0-9]+]] = global i64* null
; CHECK: @[[GLOB5:[0-9]+]] = global i64* null
; CHECK: @[[GLOB6:[0-9]+]] = global i64* @A
; CHECK: @[[GLOB7:[0-9]+]] = global i64 -1
; CHECK: @[[GLOB8:[0-9]+]] = global i64* @A
; CHECK: @[[B:[a-zA-Z0-9_$"\\.-]+]] = external global [[TY:%.*]]
[ConstantFold] Make icmp of gep fold offset based We can fold an equality or unsigned icmp between base+offset1 and base+offset2 with inbounds offsets by comparing the offsets directly. This replaces a pair of specialized folds that tried to reason based on the GEP structure instead. One of those folds was plain wrong (because it does not account for negative offsets), while the other is unnecessarily complicated and limited (e.g. it will fail with bitcasts involved). The disadvantage of this change is that it requires data layout, so the fold is no longer performed by datalayout-independent constant folding. I don't think this is a loss in practice, but it does regress the ConstantExprFold.ll test, which checks folding without running any passes. Differential Revision: https://reviews.llvm.org/D116332
2021-12-28 19:27:04 +08:00
; CHECK: @[[GLOB9:[0-9]+]] = global i1 icmp ugt (i64* getelementptr inbounds (i64, i64* @A, i64 1), i64* @A)
[Assembler] Regenerate test checks (NFC) Switch this Assembler test to use utc by adding a dummy function and opt run line.
2021-12-28 21:20:29 +08:00
; CHECK: @[[GLOB10:[0-9]+]] = global i1 false
[ConstantFold] Make icmp of gep fold offset based We can fold an equality or unsigned icmp between base+offset1 and base+offset2 with inbounds offsets by comparing the offsets directly. This replaces a pair of specialized folds that tried to reason based on the GEP structure instead. One of those folds was plain wrong (because it does not account for negative offsets), while the other is unnecessarily complicated and limited (e.g. it will fail with bitcasts involved). The disadvantage of this change is that it requires data layout, so the fold is no longer performed by datalayout-independent constant folding. I don't think this is a loss in practice, but it does regress the ConstantExprFold.ll test, which checks folding without running any passes. Differential Revision: https://reviews.llvm.org/D116332
2021-12-28 19:27:04 +08:00
; CHECK: @[[GLOB11:[0-9]+]] = global i1 icmp ult (i32* getelementptr inbounds ([[TY:%.*]], %Ty* @B, i64 0, i32 0), i32* getelementptr inbounds ([[TY]], %Ty* @B, i64 0, i32 1))
[Assembler] Regenerate test checks (NFC) Switch this Assembler test to use utc by adding a dummy function and opt run line.
2021-12-28 21:20:29 +08:00
; CHECK: @[[CONS:[a-zA-Z0-9_$"\\.-]+]] = weak global i32 0, align 8
; CHECK: @[[GLOB12:[0-9]+]] = global i64 0
; CHECK: @[[GLOB13:[0-9]+]] = global <2 x i8*> undef
; CHECK: @[[GLOB14:[0-9]+]] = global <2 x i8*> undef
; CHECK: @[[GLOB15:[0-9]+]] = global <2 x i8*> zeroinitializer
; CHECK: @[[GLOB16:[0-9]+]] = global <2 x i8*> zeroinitializer
;.
define void @dummy() {
; CHECK-LABEL: @dummy(
; CHECK-NEXT: ret void
;
ret void
}