c23b4fbdbb
Now that #149310 has restricted lifetime intrinsics to only work on allocas, we can also drop the explicit size argument. Instead, the size is implied by the alloca. This removes the ability to only mark a prefix of an alloca alive/dead. We never used that capability, so we should remove the need to handle that possibility everywhere (though many key places, including stack coloring, did not actually respect this).
121 lines
4.6 KiB
LLVM
121 lines
4.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -mtriple=wasm32-unknown-unknown -S --passes=expand-variadics --expand-variadics-override=optimize < %s | FileCheck %s -check-prefixes=CHECK,OPT
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; RUN: opt -mtriple=wasm32-unknown-unknown -S --passes=expand-variadics --expand-variadics-override=lowering < %s | FileCheck %s -check-prefixes=CHECK,ABI
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; REQUIRES: webassembly-registered-target
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declare void @llvm.lifetime.start.p0(ptr nocapture)
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declare void @llvm.va_copy.p0(ptr, ptr)
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declare void @valist(ptr noundef)
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declare void @llvm.lifetime.end.p0(ptr nocapture)
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declare void @llvm.va_start.p0(ptr)
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declare void @llvm.va_end.p0(ptr)
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define void @start_once(...) {
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; OPT-LABEL: @start_once(
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; OPT-NEXT: entry:
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; OPT-NEXT: [[VA_START:%.*]] = alloca ptr, align 4
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; OPT-NEXT: call void @llvm.lifetime.start.p0(ptr [[VA_START]])
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; OPT-NEXT: call void @llvm.va_start.p0(ptr [[VA_START]])
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; OPT-NEXT: [[TMP0:%.*]] = load ptr, ptr [[VA_START]], align 4
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; OPT-NEXT: call void @start_once.valist(ptr [[TMP0]])
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; OPT-NEXT: call void @llvm.lifetime.end.p0(ptr [[VA_START]])
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; OPT-NEXT: ret void
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;
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; ABI-LABEL: @start_once(
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; ABI-NEXT: entry:
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; ABI-NEXT: [[S:%.*]] = alloca ptr, align 4
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; ABI-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[S]])
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; ABI-NEXT: store ptr [[VARARGS:%.*]], ptr [[S]], align 4
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; ABI-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S]], align 4
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; ABI-NEXT: call void @valist(ptr noundef [[TMP0]])
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; ABI-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[S]])
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; ABI-NEXT: ret void
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;
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entry:
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%s = alloca ptr, align 4
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call void @llvm.lifetime.start.p0(ptr nonnull %s)
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call void @llvm.va_start.p0(ptr nonnull %s)
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%0 = load ptr, ptr %s, align 4
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call void @valist(ptr noundef %0)
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call void @llvm.va_end.p0(ptr %s)
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call void @llvm.lifetime.end.p0(ptr nonnull %s)
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ret void
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}
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define void @start_twice(...) {
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; OPT-LABEL: @start_twice(
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; OPT-NEXT: entry:
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; OPT-NEXT: [[VA_START:%.*]] = alloca ptr, align 4
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; OPT-NEXT: call void @llvm.lifetime.start.p0(ptr [[VA_START]])
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; OPT-NEXT: call void @llvm.va_start.p0(ptr [[VA_START]])
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; OPT-NEXT: [[TMP0:%.*]] = load ptr, ptr [[VA_START]], align 4
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; OPT-NEXT: call void @start_twice.valist(ptr [[TMP0]])
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; OPT-NEXT: call void @llvm.lifetime.end.p0(ptr [[VA_START]])
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; OPT-NEXT: ret void
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;
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; ABI-LABEL: @start_twice(
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; ABI-NEXT: entry:
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; ABI-NEXT: [[S0:%.*]] = alloca ptr, align 4
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; ABI-NEXT: [[S1:%.*]] = alloca ptr, align 4
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; ABI-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[S0]])
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; ABI-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[S1]])
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; ABI-NEXT: store ptr [[VARARGS:%.*]], ptr [[S0]], align 4
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; ABI-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S0]], align 4
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; ABI-NEXT: call void @valist(ptr noundef [[TMP0]])
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; ABI-NEXT: store ptr [[VARARGS]], ptr [[S1]], align 4
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; ABI-NEXT: [[TMP1:%.*]] = load ptr, ptr [[S1]], align 4
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; ABI-NEXT: call void @valist(ptr noundef [[TMP1]])
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; ABI-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[S1]])
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; ABI-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[S0]])
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; ABI-NEXT: ret void
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;
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entry:
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%s0 = alloca ptr, align 4
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%s1 = alloca ptr, align 4
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call void @llvm.lifetime.start.p0(ptr nonnull %s0)
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call void @llvm.lifetime.start.p0(ptr nonnull %s1)
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call void @llvm.va_start.p0(ptr nonnull %s0)
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%0 = load ptr, ptr %s0, align 4
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call void @valist(ptr noundef %0)
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call void @llvm.va_end.p0(ptr %s0)
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call void @llvm.va_start.p0(ptr nonnull %s1)
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%1 = load ptr, ptr %s1, align 4
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call void @valist(ptr noundef %1)
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call void @llvm.va_end.p0(ptr %s1)
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call void @llvm.lifetime.end.p0(ptr nonnull %s1)
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call void @llvm.lifetime.end.p0(ptr nonnull %s0)
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ret void
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}
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define void @copy(ptr noundef %va) {
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; CHECK-LABEL: @copy(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[VA_ADDR:%.*]] = alloca ptr, align 4
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; CHECK-NEXT: [[CP:%.*]] = alloca ptr, align 4
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; CHECK-NEXT: store ptr [[VA:%.*]], ptr [[VA_ADDR]], align 4
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[CP]])
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr [[CP]], ptr [[VA_ADDR]], i32 4, i1 false)
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; CHECK-NEXT: [[TMP0:%.*]] = load ptr, ptr [[CP]], align 4
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; CHECK-NEXT: call void @valist(ptr noundef [[TMP0]])
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[CP]])
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; CHECK-NEXT: ret void
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;
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entry:
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%va.addr = alloca ptr, align 4
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%cp = alloca ptr, align 4
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store ptr %va, ptr %va.addr, align 4
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call void @llvm.lifetime.start.p0(ptr nonnull %cp)
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call void @llvm.va_copy.p0(ptr nonnull %cp, ptr nonnull %va.addr)
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%0 = load ptr, ptr %cp, align 4
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call void @valist(ptr noundef %0)
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call void @llvm.lifetime.end.p0(ptr nonnull %cp)
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ret void
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}
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