mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-23 15:29:51 +00:00
1afcace3a3
patch brings numerous advantages to LLVM. One way to look at it is through diffstat: 109 files changed, 3005 insertions(+), 5906 deletions(-) Removing almost 3K lines of code is a good thing. Other advantages include: 1. Value::getType() is a simple load that can be CSE'd, not a mutating union-find operation. 2. Types a uniqued and never move once created, defining away PATypeHolder. 3. Structs can be "named" now, and their name is part of the identity that uniques them. This means that the compiler doesn't merge them structurally which makes the IR much less confusing. 4. Now that there is no way to get a cycle in a type graph without a named struct type, "upreferences" go away. 5. Type refinement is completely gone, which should make LTO much MUCH faster in some common cases with C++ code. 6. Types are now generally immutable, so we can use "Type *" instead "const Type *" everywhere. Downsides of this patch are that it removes some functions from the C API, so people using those will have to upgrade to (not yet added) new API. "LLVM 3.0" is the right time to do this. There are still some cleanups pending after this, this patch is large enough as-is. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134829 91177308-0d34-0410-b5e6-96231b3b80d8
208 lines
4.3 KiB
LLVM
208 lines
4.3 KiB
LLVM
; RUN: opt < %s -constprop -S | FileCheck %s
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declare {i8, i1} @llvm.uadd.with.overflow.i8(i8, i8)
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declare {i8, i1} @llvm.usub.with.overflow.i8(i8, i8)
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declare {i8, i1} @llvm.umul.with.overflow.i8(i8, i8)
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declare {i8, i1} @llvm.sadd.with.overflow.i8(i8, i8)
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declare {i8, i1} @llvm.ssub.with.overflow.i8(i8, i8)
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declare {i8, i1} @llvm.smul.with.overflow.i8(i8, i8)
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;;-----------------------------
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;; uadd
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;;-----------------------------
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define {i8, i1} @uadd_1() nounwind {
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entry:
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%t = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 42, i8 100)
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ret {i8, i1} %t
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; CHECK: @uadd_1
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; CHECK: ret { i8, i1 } { i8 -114, i1 false }
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}
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define {i8, i1} @uadd_2() nounwind {
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entry:
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%t = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 142, i8 120)
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ret {i8, i1} %t
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; CHECK: @uadd_2
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; CHECK: ret { i8, i1 } { i8 6, i1 true }
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}
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;;-----------------------------
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;; usub
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;;-----------------------------
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define {i8, i1} @usub_1() nounwind {
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entry:
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%t = call {i8, i1} @llvm.usub.with.overflow.i8(i8 4, i8 2)
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ret {i8, i1} %t
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; CHECK: @usub_1
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; CHECK: ret { i8, i1 } { i8 2, i1 false }
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}
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define {i8, i1} @usub_2() nounwind {
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entry:
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%t = call {i8, i1} @llvm.usub.with.overflow.i8(i8 4, i8 6)
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ret {i8, i1} %t
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; CHECK: @usub_2
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; CHECK: ret { i8, i1 } { i8 -2, i1 true }
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}
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;;-----------------------------
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;; umul
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;;-----------------------------
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define {i8, i1} @umul_1() nounwind {
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entry:
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%t = call {i8, i1} @llvm.umul.with.overflow.i8(i8 100, i8 3)
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ret {i8, i1} %t
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; CHECK: @umul_1
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; CHECK: ret { i8, i1 } { i8 44, i1 true }
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}
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define {i8, i1} @umul_2() nounwind {
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entry:
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%t = call {i8, i1} @llvm.umul.with.overflow.i8(i8 100, i8 2)
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ret {i8, i1} %t
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; CHECK: @umul_2
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; CHECK: ret { i8, i1 } { i8 -56, i1 false }
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}
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;;-----------------------------
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;; sadd
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;;-----------------------------
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define {i8, i1} @sadd_1() nounwind {
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entry:
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%t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 42, i8 2)
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ret {i8, i1} %t
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; CHECK: @sadd_1
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; CHECK: ret { i8, i1 } { i8 44, i1 false }
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}
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define {i8, i1} @sadd_2() nounwind {
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entry:
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%t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 120, i8 10)
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ret {i8, i1} %t
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; CHECK: @sadd_2
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; CHECK: ret { i8, i1 } { i8 -126, i1 true }
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}
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define {i8, i1} @sadd_3() nounwind {
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entry:
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%t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 -120, i8 10)
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ret {i8, i1} %t
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; CHECK: @sadd_3
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; CHECK: ret { i8, i1 } { i8 -110, i1 false }
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}
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define {i8, i1} @sadd_4() nounwind {
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entry:
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%t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 -120, i8 -10)
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ret {i8, i1} %t
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; CHECK: @sadd_4
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; CHECK: ret { i8, i1 } { i8 126, i1 true }
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}
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define {i8, i1} @sadd_5() nounwind {
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entry:
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%t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 2, i8 -10)
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ret {i8, i1} %t
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; CHECK: @sadd_5
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; CHECK: ret { i8, i1 } { i8 -8, i1 false }
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}
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;;-----------------------------
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;; ssub
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;;-----------------------------
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define {i8, i1} @ssub_1() nounwind {
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entry:
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%t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 4, i8 2)
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ret {i8, i1} %t
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; CHECK: @ssub_1
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; CHECK: ret { i8, i1 } { i8 2, i1 false }
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}
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define {i8, i1} @ssub_2() nounwind {
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entry:
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%t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 4, i8 6)
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ret {i8, i1} %t
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; CHECK: @ssub_2
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; CHECK: ret { i8, i1 } { i8 -2, i1 false }
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}
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define {i8, i1} @ssub_3() nounwind {
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entry:
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%t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 -10, i8 120)
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ret {i8, i1} %t
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; CHECK: @ssub_3
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; CHECK: ret { i8, i1 } { i8 126, i1 true }
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}
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define {i8, i1} @ssub_3b() nounwind {
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entry:
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%t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 -10, i8 10)
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ret {i8, i1} %t
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; CHECK: @ssub_3b
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; CHECK: ret { i8, i1 } { i8 -20, i1 false }
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}
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define {i8, i1} @ssub_4() nounwind {
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entry:
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%t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 120, i8 -10)
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ret {i8, i1} %t
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; CHECK: @ssub_4
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; CHECK: ret { i8, i1 } { i8 -126, i1 true }
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}
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define {i8, i1} @ssub_4b() nounwind {
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entry:
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%t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 20, i8 -10)
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ret {i8, i1} %t
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; CHECK: @ssub_4b
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; CHECK: ret { i8, i1 } { i8 30, i1 false }
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}
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define {i8, i1} @ssub_5() nounwind {
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entry:
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%t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 -20, i8 -10)
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ret {i8, i1} %t
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; CHECK: @ssub_5
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; CHECK: ret { i8, i1 } { i8 -10, i1 false }
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}
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;;-----------------------------
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;; smul
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;;-----------------------------
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; rdar://8501501
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define {i8, i1} @smul_1() nounwind {
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entry:
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%t = call {i8, i1} @llvm.smul.with.overflow.i8(i8 -20, i8 -10)
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ret {i8, i1} %t
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; CHECK: @smul_1
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; CHECK: ret { i8, i1 } { i8 -56, i1 true }
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}
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