https://github.com/dtcxzyw resolved
https://github.com/llvm/llvm-project/pull/65910
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https://github.com/dtcxzyw unresolved
https://github.com/llvm/llvm-project/pull/65910
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@@ -8291,6 +8291,29 @@ static std::optional isImpliedCondICmps(const
ICmpInst *LHS,
if (L0 == R0 && match(L1, m_APInt(LC)) && match(R1, m_APInt(RC)))
return isImpliedCondCommonOperandWithConstants(LPred, *LC, RPred, *RC);
+ // L0 = R0 = L1 + R1, L0 >=u L1 implies R0 >=
@@ -8291,6 +8291,29 @@ static std::optional isImpliedCondICmps(const
ICmpInst *LHS,
if (L0 == R0 && match(L1, m_APInt(LC)) && match(R1, m_APInt(RC)))
return isImpliedCondCommonOperandWithConstants(LPred, *LC, RPred, *RC);
+ // L0 = R0 = L1 + R1, L0 >=u L1 implies R0 >=
https://github.com/dtcxzyw resolved
https://github.com/llvm/llvm-project/pull/65910
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https://github.com/dtcxzyw updated
https://github.com/llvm/llvm-project/pull/65910
>From 9bb817aa40dd9bc1bbb18b4cf4bc079145c8ecaa Mon Sep 17 00:00:00 2001
From: Yingwei Zheng
Date: Mon, 11 Sep 2023 03:58:02 +0800
Subject: [PATCH 1/2] [ValueTracking] Simplify uaddo pattern
---
llvm/lib/Analysi
dtcxzyw wrote:
Ping.
https://github.com/llvm/llvm-project/pull/65910
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llvmbot wrote:
@llvm/pr-subscribers-llvm-transforms
Changes
This patch simplifies the overflow check of unsigned addition.
`a + b =u a` implies `a + b >=u b`
Alive2: https://alive2.llvm.org/ce/z/H8oK8n
Fixes #65863.
---
Full diff: https://github.com/llv
https://github.com/dtcxzyw updated
https://github.com/llvm/llvm-project/pull/65910
>From 9bb817aa40dd9bc1bbb18b4cf4bc079145c8ecaa Mon Sep 17 00:00:00 2001
From: Yingwei Zheng
Date: Mon, 11 Sep 2023 03:58:02 +0800
Subject: [PATCH] [ValueTracking] Simplify uaddo pattern
---
llvm/lib/Analysis/Va
