cmd/pprof: update vendored github.com/google/pprof

Pull in the latest published version of github.com/google/pprof
as part of the continuous process of keeping Go's dependencies
up to date.

For #36905.

[git-generate]
cd src/cmd
go get github.com/google/pprof@v0.0.0-20250630185457-6e76a2b096b5
go mod tidy
go mod vendor

Change-Id: Icfa35291f629fcffae67238704e59e17ee05e0b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/696015
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>

3 files changed, 20 insertions, 20 deletions

diff --git a/src/cmd/vendor/github.com/google/pprof/profile/merge.go b/src/cmd/vendor/github.com/google/pprof/profile/merge.go
index ba4d746407..8a51690be4 100644
--- a/src/cmd/vendor/github.com/google/pprof/profile/merge.go
+++ b/src/cmd/vendor/github.com/google/pprof/profile/merge.go
@@ -17,6 +17,7 @@ package profile
 import (
 	"encoding/binary"
 	"fmt"
+	"slices"
 	"sort"
 	"strconv"
 	"strings"
@@ -78,12 +79,10 @@ func Merge(srcs []*Profile) (*Profile, error) {
 		}
 	}
 
-	for _, s := range p.Sample {
-		if isZeroSample(s) {
-			// If there are any zero samples, re-merge the profile to GC
-			// them.
-			return Merge([]*Profile{p})
-		}
+	if slices.ContainsFunc(p.Sample, isZeroSample) {
+		// If there are any zero samples, re-merge the profile to GC
+		// them.
+		return Merge([]*Profile{p})
 	}
 
 	return p, nil
diff --git a/src/cmd/vendor/github.com/google/pprof/profile/profile.go b/src/cmd/vendor/github.com/google/pprof/profile/profile.go
index f47a243903..43f561d445 100644
--- a/src/cmd/vendor/github.com/google/pprof/profile/profile.go
+++ b/src/cmd/vendor/github.com/google/pprof/profile/profile.go
@@ -24,6 +24,7 @@ import (
 	"math"
 	"path/filepath"
 	"regexp"
+	"slices"
 	"sort"
 	"strings"
 	"sync"
@@ -734,12 +735,7 @@ func (p *Profile) RemoveLabel(key string) {
 
 // HasLabel returns true if a sample has a label with indicated key and value.
 func (s *Sample) HasLabel(key, value string) bool {
-	for _, v := range s.Label[key] {
-		if v == value {
-			return true
-		}
-	}
-	return false
+	return slices.Contains(s.Label[key], value)
 }
 
 // SetNumLabel sets the specified key to the specified value for all samples in the
@@ -852,7 +848,17 @@ func (p *Profile) HasFileLines() bool {
 // "[vdso]", "[vsyscall]" and some others, see the code.
 func (m *Mapping) Unsymbolizable() bool {
 	name := filepath.Base(m.File)
-	return strings.HasPrefix(name, "[") || strings.HasPrefix(name, "linux-vdso") || strings.HasPrefix(m.File, "/dev/dri/") || m.File == "//anon"
+	switch {
+	case strings.HasPrefix(name, "["):
+	case strings.HasPrefix(name, "linux-vdso"):
+	case strings.HasPrefix(m.File, "/dev/dri/"):
+	case m.File == "//anon":
+	case m.File == "":
+	case strings.HasPrefix(m.File, "/memfd:"):
+	default:
+		return false
+	}
+	return true
 }
 
 // Copy makes a fully independent copy of a profile.
diff --git a/src/cmd/vendor/github.com/google/pprof/profile/prune.go b/src/cmd/vendor/github.com/google/pprof/profile/prune.go
index b2f9fd5466..7bba31e8ce 100644
--- a/src/cmd/vendor/github.com/google/pprof/profile/prune.go
+++ b/src/cmd/vendor/github.com/google/pprof/profile/prune.go
@@ -19,6 +19,7 @@ package profile
 import (
 	"fmt"
 	"regexp"
+	"slices"
 	"strings"
 )
 
@@ -40,13 +41,7 @@ func simplifyFunc(f string) string {
 	// Account for unsimplified names -- try  to remove the argument list by trimming
 	// starting from the first '(', but skipping reserved names that have '('.
 	for _, ind := range bracketRx.FindAllStringSubmatchIndex(funcName, -1) {
-		foundReserved := false
-		for _, res := range reservedNames {
-			if funcName[ind[0]:ind[1]] == res {
-				foundReserved = true
-				break
-			}
-		}
+		foundReserved := slices.Contains(reservedNames, funcName[ind[0]:ind[1]])
 		if !foundReserved {
 			funcName = funcName[:ind[0]]
 			break